octave-shane/gnulib-hg: m4/printf.m4 annotate

annotate m4/printf.m4 @ 8860:771a56a41b5b

Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.

author	Bruno Haible <bruno@clisp.org>
date	Sun, 20 May 2007 09:01:48 +0000
parents	c869de19cb7f
children	b99c46035f3e

rev	line source
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	1 # printf.m4 serial 12
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	2 dnl Copyright (C) 2003, 2007 Free Software Foundation, Inc.
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	3 dnl This file is free software; the Free Software Foundation
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	4 dnl gives unlimited permission to copy and/or distribute it,
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	5 dnl with or without modifications, as long as this notice is preserved.
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	6
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	7 dnl Test whether the *printf family of functions supports the 'j', 'z', 't',
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	8 dnl 'L' size specifiers. (ISO C99, POSIX:2001)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	9 dnl Result is gl_cv_func_printf_sizes_c99.
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	10
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	11 AC_DEFUN([gl_PRINTF_SIZES_C99],
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	12 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	13 AC_REQUIRE([AC_PROG_CC])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	14 AC_REQUIRE([gl_AC_HEADER_STDINT_H])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	15 AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	16 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	17 AC_CACHE_CHECK([whether printf supports size specifiers as in C99],
8847 0c9ab5719ed4 Whitespace change. Bruno Haible <bruno@clisp.org> parents: 8840 diff changeset	18 [gl_cv_func_printf_sizes_c99],
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	19 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	20 AC_TRY_RUN([
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	21 #include <stddef.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	22 #include <stdio.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	23 #include <string.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	24 #include <sys/types.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	25 #if HAVE_STDINT_H_WITH_UINTMAX
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	26 # include <stdint.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	27 #endif
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	28 #if HAVE_INTTYPES_H_WITH_UINTMAX
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	29 # include <inttypes.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	30 #endif
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	31 static char buf[100];
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	32 int main ()
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	33 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	34 #if HAVE_STDINT_H_WITH_UINTMAX \|\| HAVE_INTTYPES_H_WITH_UINTMAX
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	35 buf[0] = '\0';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	36 if (sprintf (buf, "%ju %d", (uintmax_t) 12345671, 33, 44, 55) < 0
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	37 \|\| strcmp (buf, "12345671 33") != 0)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	38 return 1;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	39 #endif
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	40 buf[0] = '\0';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	41 if (sprintf (buf, "%zu %d", (size_t) 12345672, 33, 44, 55) < 0
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	42 \|\| strcmp (buf, "12345672 33") != 0)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	43 return 1;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	44 buf[0] = '\0';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	45 if (sprintf (buf, "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55) < 0
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	46 \|\| strcmp (buf, "12345673 33") != 0)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	47 return 1;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	48 buf[0] = '\0';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	49 if (sprintf (buf, "%Lg %d", (long double) 1.5, 33, 44, 55) < 0
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	50 \|\| strcmp (buf, "1.5 33") != 0)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	51 return 1;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	52 return 0;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	53 }], [gl_cv_func_printf_sizes_c99=yes], [gl_cv_func_printf_sizes_c99=no],
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	54 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	55 changequote(,)dnl
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	56 case "$host_os" in
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	57 # Guess yes on glibc systems.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	58 -gnu) gl_cv_func_printf_sizes_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	59 # Guess yes on FreeBSD >= 5.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	60 freebsd[1-4]*) gl_cv_func_printf_sizes_c99="guessing no";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	61 freebsd* \| kfreebsd*) gl_cv_func_printf_sizes_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	62 # Guess yes on MacOS X >= 10.3.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	63 darwin[1-6].*) gl_cv_func_printf_sizes_c99="guessing no";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	64 darwin*) gl_cv_func_printf_sizes_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	65 # Guess yes on OpenBSD >= 3.9.
8347 03bfd77e2c10 Add info about OpenBSD. Bruno Haible <bruno@clisp.org> parents: 8346 diff changeset	66 openbsd[1-2].* \| openbsd3.[0-8] \| openbsd3.[0-8].*)
03bfd77e2c10 Add info about OpenBSD. Bruno Haible <bruno@clisp.org> parents: 8346 diff changeset	67 gl_cv_func_printf_sizes_c99="guessing no";;
03bfd77e2c10 Add info about OpenBSD. Bruno Haible <bruno@clisp.org> parents: 8346 diff changeset	68 openbsd*) gl_cv_func_printf_sizes_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	69 # Guess yes on Solaris >= 2.10.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	70 solaris2.[0-9]*) gl_cv_func_printf_sizes_c99="guessing no";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	71 solaris*) gl_cv_func_printf_sizes_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	72 # Guess yes on NetBSD >= 3.
8350 4e430e6470b3 Be more conservative about the config.guess results on NetBSD. Bruno Haible <bruno@clisp.org> parents: 8349 diff changeset	73 netbsd[1-2]* \| netbsdelf[1-2]* \| netbsdaout[1-2]* \| netbsdcoff[1-2]*)
4e430e6470b3 Be more conservative about the config.guess results on NetBSD. Bruno Haible <bruno@clisp.org> parents: 8349 diff changeset	74 gl_cv_func_printf_sizes_c99="guessing no";;
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	75 netbsd*) gl_cv_func_printf_sizes_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	76 # If we don't know, assume the worst.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	77 *) gl_cv_func_printf_sizes_c99="guessing no";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	78 esac
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	79 changequote([,])dnl
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	80 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	81 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	82 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	83
8849 c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	84 dnl Test whether the *printf family of functions supports 'long double'
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	85 dnl arguments together with the 'L' size specifier. (ISO C99, POSIX:2001)
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	86 dnl Result is gl_cv_func_printf_long_double.
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	87
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	88 AC_DEFUN([gl_PRINTF_LONG_DOUBLE],
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	89 [
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	90 AC_REQUIRE([AC_PROG_CC])
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	91 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	92 AC_CACHE_CHECK([whether printf supports 'long double' arguments],
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	93 [gl_cv_func_printf_long_double],
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	94 [
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	95 AC_TRY_RUN([
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	96 #include <stdio.h>
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	97 #include <string.h>
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	98 static char buf[100];
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	99 int main ()
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	100 {
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	101 buf[0] = '\0';
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	102 if (sprintf (buf, "%Lf %d", 1.75L, 33, 44, 55) < 0
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	103 \|\| strcmp (buf, "1.750000 33") != 0)
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	104 return 1;
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	105 buf[0] = '\0';
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	106 if (sprintf (buf, "%Le %d", 1.75L, 33, 44, 55) < 0
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	107 \|\| strcmp (buf, "1.750000e+00 33") != 0)
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	108 return 1;
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	109 buf[0] = '\0';
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	110 if (sprintf (buf, "%Lg %d", 1.75L, 33, 44, 55) < 0
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	111 \|\| strcmp (buf, "1.75 33") != 0)
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	112 return 1;
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	113 return 0;
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	114 }], [gl_cv_func_printf_long_double=yes], [gl_cv_func_printf_long_double=no],
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	115 [
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	116 changequote(,)dnl
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	117 case "$host_os" in
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	118 beos*) gl_cv_func_printf_long_double="guessing no";;
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	119 mingw* \| pw*) gl_cv_func_printf_long_double="guessing no";;
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	120 *) gl_cv_func_printf_long_double="guessing yes";;
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	121 esac
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	122 changequote([,])dnl
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	123 ])
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	124 ])
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	125 ])
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	126
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	127 dnl Test whether the *printf family of functions supports infinite 'double'
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	128 dnl arguments in the %f, %e, %g directives. (ISO C99, POSIX:2001)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	129 dnl Result is gl_cv_func_printf_infinite.
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	130
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	131 AC_DEFUN([gl_PRINTF_INFINITE],
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	132 [
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	133 AC_REQUIRE([AC_PROG_CC])
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	134 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	135 AC_CACHE_CHECK([whether printf supports infinite 'double' arguments],
8847 0c9ab5719ed4 Whitespace change. Bruno Haible <bruno@clisp.org> parents: 8840 diff changeset	136 [gl_cv_func_printf_infinite],
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	137 [
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	138 AC_TRY_RUN([
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	139 #include <stdio.h>
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	140 #include <string.h>
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	141 static char buf[100];
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	142 int main ()
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	143 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	144 if (sprintf (buf, "%f", 1.0 / 0.0) < 0
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	145 \|\| (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	146 return 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	147 if (sprintf (buf, "%f", -1.0 / 0.0) < 0
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	148 \|\| (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	149 return 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	150 if (sprintf (buf, "%e", 1.0 / 0.0) < 0
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	151 \|\| (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	152 return 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	153 if (sprintf (buf, "%e", -1.0 / 0.0) < 0
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	154 \|\| (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	155 return 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	156 if (sprintf (buf, "%g", 1.0 / 0.0) < 0
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	157 \|\| (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	158 return 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	159 if (sprintf (buf, "%g", -1.0 / 0.0) < 0
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	160 \|\| (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	161 return 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	162 return 0;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	163 }], [gl_cv_func_printf_infinite=yes], [gl_cv_func_printf_infinite=no],
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	164 [
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	165 changequote(,)dnl
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	166 case "$host_os" in
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	167 # Guess yes on glibc systems.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	168 -gnu) gl_cv_func_printf_infinite="guessing yes";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	169 # Guess yes on FreeBSD >= 6.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	170 freebsd[1-5]*) gl_cv_func_printf_infinite="guessing no";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	171 freebsd* \| kfreebsd*) gl_cv_func_printf_infinite="guessing yes";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	172 # Guess yes on MacOS X >= 10.3.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	173 darwin[1-6].*) gl_cv_func_printf_infinite="guessing no";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	174 darwin*) gl_cv_func_printf_infinite="guessing yes";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	175 # Guess yes on HP-UX >= 11.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	176 hpux[7-9]* \| hpux10*) gl_cv_func_printf_infinite="guessing no";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	177 hpux*) gl_cv_func_printf_infinite="guessing yes";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	178 # Guess yes on IRIX >= 6.5.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	179 irix6.5) gl_cv_func_printf_infinite="guessing yes";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	180 # Guess yes on NetBSD >= 3.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	181 netbsd[1-2]* \| netbsdelf[1-2]* \| netbsdaout[1-2]* \| netbsdcoff[1-2]*)
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	182 gl_cv_func_printf_infinite="guessing no";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	183 netbsd*) gl_cv_func_printf_infinite="guessing yes";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	184 # Guess yes on BeOS.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	185 beos*) gl_cv_func_printf_infinite="guessing yes";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	186 # If we don't know, assume the worst.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	187 *) gl_cv_func_printf_infinite="guessing no";;
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	188 esac
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	189 changequote([,])dnl
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	190 ])
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	191 ])
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	192 ])
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8832 diff changeset	193
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	194 dnl Test whether the *printf family of functions supports infinite 'long double'
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	195 dnl arguments in the %f, %e, %g directives. (ISO C99, POSIX:2001)
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	196 dnl Result is gl_cv_func_printf_infinite_long_double.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	197
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	198 AC_DEFUN([gl_PRINTF_INFINITE_LONG_DOUBLE],
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	199 [
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	200 AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	201 AC_REQUIRE([AC_PROG_CC])
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	202 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	203 case "$gl_cv_func_printf_long_double" in
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	204 *yes)
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	205 AC_CACHE_CHECK([whether printf supports infinite 'long double' arguments],
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	206 [gl_cv_func_printf_infinite_long_double],
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	207 [
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	208 AC_TRY_RUN([
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	209 #include <stdio.h>
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	210 #include <string.h>
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	211 static char buf[100];
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	212 int main ()
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	213 {
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	214 if (sprintf (buf, "%Lf", 1.0L / 0.0L) < 0
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	215 \|\| (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	216 return 1;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	217 if (sprintf (buf, "%Lf", -1.0L / 0.0L) < 0
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	218 \|\| (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	219 return 1;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	220 if (sprintf (buf, "%Le", 1.0L / 0.0L) < 0
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	221 \|\| (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	222 return 1;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	223 if (sprintf (buf, "%Le", -1.0L / 0.0L) < 0
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	224 \|\| (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	225 return 1;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	226 if (sprintf (buf, "%Lg", 1.0L / 0.0L) < 0
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	227 \|\| (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	228 return 1;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	229 if (sprintf (buf, "%Lg", -1.0L / 0.0L) < 0
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	230 \|\| (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	231 return 1;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	232 return 0;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	233 }],
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	234 [gl_cv_func_printf_infinite_long_double=yes],
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	235 [gl_cv_func_printf_infinite_long_double=no],
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	236 [
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	237 changequote(,)dnl
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	238 case "$host_os" in
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	239 # Guess yes on glibc systems.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	240 -gnu) gl_cv_func_printf_infinite_long_double="guessing yes";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	241 # Guess yes on FreeBSD >= 6.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	242 freebsd[1-5]*) gl_cv_func_printf_infinite_long_double="guessing no";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	243 freebsd* \| kfreebsd*) gl_cv_func_printf_infinite_long_double="guessing yes";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	244 # Guess yes on MacOS X >= 10.3.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	245 darwin[1-6].*) gl_cv_func_printf_infinite_long_double="guessing no";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	246 darwin*) gl_cv_func_printf_infinite_long_double="guessing yes";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	247 # Guess yes on HP-UX >= 11.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	248 hpux[7-9]* \| hpux10*) gl_cv_func_printf_infinite_long_double="guessing no";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	249 hpux*) gl_cv_func_printf_infinite_long_double="guessing yes";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	250 # Guess yes on IRIX >= 6.5.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	251 irix6.5) gl_cv_func_printf_infinite_long_double="guessing yes";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	252 # Guess yes on NetBSD >= 3.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	253 netbsd[1-2]* \| netbsdelf[1-2]* \| netbsdaout[1-2]* \| netbsdcoff[1-2]*)
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	254 gl_cv_func_printf_infinite_long_double="guessing no";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	255 netbsd*) gl_cv_func_printf_infinite_long_double="guessing yes";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	256 # If we don't know, assume the worst.
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	257 *) gl_cv_func_printf_infinite_long_double="guessing no";;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	258 esac
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	259 changequote([,])dnl
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	260 ])
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	261 ])
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	262 ;;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	263 *)
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	264 gl_cv_func_printf_infinite_long_double="irrelevant"
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	265 ;;
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	266 esac
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	267 ])
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	268
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	269 dnl Test whether the *printf family of functions supports the 'a' and 'A'
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	270 dnl conversion specifier for hexadecimal output of floating-point numbers.
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	271 dnl (ISO C99, POSIX:2001)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	272 dnl Result is gl_cv_func_printf_directive_a.
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	273
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	274 AC_DEFUN([gl_PRINTF_DIRECTIVE_A],
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	275 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	276 AC_REQUIRE([AC_PROG_CC])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	277 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	278 AC_CACHE_CHECK([whether printf supports the 'a' and 'A' directives],
8847 0c9ab5719ed4 Whitespace change. Bruno Haible <bruno@clisp.org> parents: 8840 diff changeset	279 [gl_cv_func_printf_directive_a],
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	280 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	281 AC_TRY_RUN([
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	282 #include <stdio.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	283 #include <string.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	284 static char buf[100];
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	285 int main ()
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	286 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	287 if (sprintf (buf, "%a %d", 3.1416015625, 33, 44, 55) < 0
8344 c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	288 \|\| (strcmp (buf, "0x1.922p+1 33") != 0
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	289 && strcmp (buf, "0x3.244p+0 33") != 0
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	290 && strcmp (buf, "0x6.488p-1 33") != 0
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	291 && strcmp (buf, "0xc.91p-2 33") != 0))
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	292 return 1;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	293 if (sprintf (buf, "%A %d", -3.1416015625, 33, 44, 55) < 0
8344 c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	294 \|\| (strcmp (buf, "-0X1.922P+1 33") != 0
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	295 && strcmp (buf, "-0X3.244P+0 33") != 0
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	296 && strcmp (buf, "-0X6.488P-1 33") != 0
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	297 && strcmp (buf, "-0XC.91P-2 33") != 0))
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	298 return 1;
8643 013fc89d552c Catch a bug of printf "%a" on FreeBSD 6.1. Bruno Haible <bruno@clisp.org> parents: 8383 diff changeset	299 /* This catches a FreeBSD 6.1 bug: it doesn't round. */
013fc89d552c Catch a bug of printf "%a" on FreeBSD 6.1. Bruno Haible <bruno@clisp.org> parents: 8383 diff changeset	300 if (sprintf (buf, "%.2a %d", 1.51, 33, 44, 55) < 0
8663 e2189cab039d The 2007-04-04 patch was broken. Bruno Haible <bruno@clisp.org> parents: 8662 diff changeset	301 \|\| (strcmp (buf, "0x1.83p+0 33") != 0
e2189cab039d The 2007-04-04 patch was broken. Bruno Haible <bruno@clisp.org> parents: 8662 diff changeset	302 && strcmp (buf, "0x3.05p-1 33") != 0
e2189cab039d The 2007-04-04 patch was broken. Bruno Haible <bruno@clisp.org> parents: 8662 diff changeset	303 && strcmp (buf, "0x6.0ap-2 33") != 0
e2189cab039d The 2007-04-04 patch was broken. Bruno Haible <bruno@clisp.org> parents: 8662 diff changeset	304 && strcmp (buf, "0xc.14p-3 33") != 0))
8643 013fc89d552c Catch a bug of printf "%a" on FreeBSD 6.1. Bruno Haible <bruno@clisp.org> parents: 8383 diff changeset	305 return 1;
8662 023aa5c883a7 Guard against FreeBSD 6.1 bug. Bruno Haible <bruno@clisp.org> parents: 8648 diff changeset	306 /* This catches a FreeBSD 6.1 bug. See
023aa5c883a7 Guard against FreeBSD 6.1 bug. Bruno Haible <bruno@clisp.org> parents: 8648 diff changeset	307 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
023aa5c883a7 Guard against FreeBSD 6.1 bug. Bruno Haible <bruno@clisp.org> parents: 8648 diff changeset	308 if (sprintf (buf, "%010a %d", 1.0 / 0.0, 33, 44, 55) < 0
8663 e2189cab039d The 2007-04-04 patch was broken. Bruno Haible <bruno@clisp.org> parents: 8662 diff changeset	309 \|\| buf[0] == '0')
8662 023aa5c883a7 Guard against FreeBSD 6.1 bug. Bruno Haible <bruno@clisp.org> parents: 8648 diff changeset	310 return 1;
8344 c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	311 /* This catches a MacOS X 10.3.9 (Darwin 7.9) bug. */
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	312 if (sprintf (buf, "%.1a", 1.999) < 0
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	313 \|\| (strcmp (buf, "0x1.0p+1") != 0
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	314 && strcmp (buf, "0x2.0p+0") != 0
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	315 && strcmp (buf, "0x4.0p-1") != 0
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	316 && strcmp (buf, "0x8.0p-2") != 0))
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	317 return 1;
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	318 /* This catches the same MacOS X 10.3.9 (Darwin 7.9) bug and also a
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	319 glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	320 if (sprintf (buf, "%.1La", 1.999L) < 0
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	321 \|\| (strcmp (buf, "0x1.0p+1") != 0
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	322 && strcmp (buf, "0x2.0p+0") != 0
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	323 && strcmp (buf, "0x4.0p-1") != 0
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	324 && strcmp (buf, "0x8.0p-2") != 0))
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	325 return 1;
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	326 return 0;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	327 }], [gl_cv_func_printf_directive_a=yes], [gl_cv_func_printf_directive_a=no],
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	328 [
8344 c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	329 case "$host_os" in
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	330 # Guess yes on glibc >= 2.5 systems.
8344 c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	331 -gnu)
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	332 AC_EGREP_CPP([BZ2908], [
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	333 #include <features.h>
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	334 #ifdef __GNU_LIBRARY__
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	335 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 5) \|\| (__GLIBC__ > 2)
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	336 BZ2908
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	337 #endif
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	338 #endif
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	339 ],
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	340 [gl_cv_func_printf_directive_a="guessing yes"],
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	341 [gl_cv_func_printf_directive_a="guessing no"])
c8055280f68e Test a corner case. Exclude two buggy implementations. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	342 ;;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	343 # If we don't know, assume the worst.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	344 *) gl_cv_func_printf_directive_a="guessing no";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	345 esac
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	346 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	347 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	348 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	349
8664 40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	350 dnl Test whether the *printf family of functions supports the %F format
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	351 dnl directive. (ISO C99, POSIX:2001)
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	352 dnl Result is gl_cv_func_printf_directive_f.
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	353
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	354 AC_DEFUN([gl_PRINTF_DIRECTIVE_F],
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	355 [
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	356 AC_REQUIRE([AC_PROG_CC])
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	357 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	358 AC_CACHE_CHECK([whether printf supports the 'F' directive],
8847 0c9ab5719ed4 Whitespace change. Bruno Haible <bruno@clisp.org> parents: 8840 diff changeset	359 [gl_cv_func_printf_directive_f],
8664 40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	360 [
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	361 AC_TRY_RUN([
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	362 #include <stdio.h>
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	363 #include <string.h>
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	364 static char buf[100];
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	365 int main ()
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	366 {
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	367 if (sprintf (buf, "%F %d", 1234567.0, 33, 44, 55) < 0
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	368 \|\| strcmp (buf, "1234567.000000 33") != 0)
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	369 return 1;
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	370 if (sprintf (buf, "%F", 1.0 / 0.0) < 0
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	371 \|\| (strcmp (buf, "INF") != 0 && strcmp (buf, "INFINITY") != 0))
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	372 return 1;
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	373 /* This catches a Cygwin 2007 bug. */
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	374 if (sprintf (buf, "%.F", 1234.0) < 0
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	375 \|\| strcmp (buf, "1234") != 0)
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	376 return 1;
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	377 return 0;
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	378 }], [gl_cv_func_printf_directive_f=yes], [gl_cv_func_printf_directive_f=no],
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	379 [
8666 7ff0dd9e3d4f Better guessing in gl_PRINTF_DIRECTIVE_F when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 8665 diff changeset	380 changequote(,)dnl
8664 40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	381 case "$host_os" in
8666 7ff0dd9e3d4f Better guessing in gl_PRINTF_DIRECTIVE_F when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 8665 diff changeset	382 # Guess yes on glibc systems.
7ff0dd9e3d4f Better guessing in gl_PRINTF_DIRECTIVE_F when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 8665 diff changeset	383 -gnu) gl_cv_func_printf_directive_f="guessing yes";;
7ff0dd9e3d4f Better guessing in gl_PRINTF_DIRECTIVE_F when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 8665 diff changeset	384 # Guess yes on FreeBSD >= 6.
7ff0dd9e3d4f Better guessing in gl_PRINTF_DIRECTIVE_F when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 8665 diff changeset	385 freebsd[1-5]*) gl_cv_func_printf_directive_f="guessing no";;
7ff0dd9e3d4f Better guessing in gl_PRINTF_DIRECTIVE_F when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 8665 diff changeset	386 freebsd* \| kfreebsd*) gl_cv_func_printf_directive_f="guessing yes";;
7ff0dd9e3d4f Better guessing in gl_PRINTF_DIRECTIVE_F when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 8665 diff changeset	387 # Guess yes on MacOS X >= 10.3.
7ff0dd9e3d4f Better guessing in gl_PRINTF_DIRECTIVE_F when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 8665 diff changeset	388 darwin[1-6].*) gl_cv_func_printf_directive_f="guessing no";;
7ff0dd9e3d4f Better guessing in gl_PRINTF_DIRECTIVE_F when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 8665 diff changeset	389 darwin*) gl_cv_func_printf_directive_f="guessing yes";;
7ff0dd9e3d4f Better guessing in gl_PRINTF_DIRECTIVE_F when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 8665 diff changeset	390 # Guess yes on Solaris >= 2.10.
7ff0dd9e3d4f Better guessing in gl_PRINTF_DIRECTIVE_F when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 8665 diff changeset	391 solaris2.[0-9]*) gl_cv_func_printf_directive_f="guessing no";;
7ff0dd9e3d4f Better guessing in gl_PRINTF_DIRECTIVE_F when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 8665 diff changeset	392 solaris*) gl_cv_func_printf_directive_f="guessing yes";;
8664 40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	393 # If we don't know, assume the worst.
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	394 *) gl_cv_func_printf_directive_f="guessing no";;
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	395 esac
8666 7ff0dd9e3d4f Better guessing in gl_PRINTF_DIRECTIVE_F when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 8665 diff changeset	396 changequote([,])dnl
8664 40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	397 ])
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	398 ])
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	399 ])
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8663 diff changeset	400
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	401 dnl Test whether the *printf family of functions supports the %n format
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	402 dnl directive. (ISO C99, POSIX:2001)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	403 dnl Result is gl_cv_func_printf_directive_n.
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	404
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	405 AC_DEFUN([gl_PRINTF_DIRECTIVE_N],
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	406 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	407 AC_REQUIRE([AC_PROG_CC])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	408 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	409 AC_CACHE_CHECK([whether printf supports the 'n' directive],
8847 0c9ab5719ed4 Whitespace change. Bruno Haible <bruno@clisp.org> parents: 8840 diff changeset	410 [gl_cv_func_printf_directive_n],
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	411 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	412 AC_TRY_RUN([
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	413 #include <stdio.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	414 #include <string.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	415 static char buf[100];
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	416 int main ()
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	417 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	418 int count = -1;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	419 if (sprintf (buf, "%d %n", 123, &count, 33, 44, 55) < 0
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	420 \|\| strcmp (buf, "123 ") != 0
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	421 \|\| count != 4)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	422 return 1;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	423 return 0;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	424 }], [gl_cv_func_printf_directive_n=yes], [gl_cv_func_printf_directive_n=no],
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	425 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	426 changequote(,)dnl
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	427 case "$host_os" in
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	428 *) gl_cv_func_printf_directive_n="guessing yes";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	429 esac
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	430 changequote([,])dnl
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	431 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	432 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	433 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	434
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	435 dnl Test whether the *printf family of functions supports POSIX/XSI format
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	436 dnl strings with positions. (POSIX:2001)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	437 dnl Result is gl_cv_func_printf_positions.
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	438
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	439 AC_DEFUN([gl_PRINTF_POSITIONS],
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	440 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	441 AC_REQUIRE([AC_PROG_CC])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	442 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	443 AC_CACHE_CHECK([whether printf supports POSIX/XSI format strings with positions],
8847 0c9ab5719ed4 Whitespace change. Bruno Haible <bruno@clisp.org> parents: 8840 diff changeset	444 [gl_cv_func_printf_positions],
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	445 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	446 AC_TRY_RUN([
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	447 #include <stdio.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	448 #include <string.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	449 /* The string "%2$d %1$d", with dollar characters protected from the shell's
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	450 dollar expansion (possibly an autoconf bug). */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	451 static char format[] = { '%', '2', '$', 'd', ' ', '%', '1', '$', 'd', '\0' };
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	452 static char buf[100];
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	453 int main ()
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	454 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	455 sprintf (buf, format, 33, 55);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	456 return (strcmp (buf, "55 33") != 0);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	457 }], [gl_cv_func_printf_positions=yes], [gl_cv_func_printf_positions=no],
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	458 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	459 changequote(,)dnl
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	460 case "$host_os" in
8350 4e430e6470b3 Be more conservative about the config.guess results on NetBSD. Bruno Haible <bruno@clisp.org> parents: 8349 diff changeset	461 netbsd[1-3]* \| netbsdelf[1-3]* \| netbsdaout[1-3]* \| netbsdcoff[1-3]*)
4e430e6470b3 Be more conservative about the config.guess results on NetBSD. Bruno Haible <bruno@clisp.org> parents: 8349 diff changeset	462 gl_cv_func_printf_positions="guessing no";;
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	463 beos*) gl_cv_func_printf_positions="guessing no";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	464 mingw* \| pw*) gl_cv_func_printf_positions="guessing no";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	465 *) gl_cv_func_printf_positions="guessing yes";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	466 esac
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	467 changequote([,])dnl
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	468 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	469 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	470 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	471
8803 6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	472 dnl Test whether the *printf family of functions supports POSIX/XSI format
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	473 dnl strings with the ' flag for grouping of decimal digits. (POSIX:2001)
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	474 dnl Result is gl_cv_func_printf_flag_grouping.
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	475
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	476 AC_DEFUN([gl_PRINTF_FLAG_GROUPING],
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	477 [
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	478 AC_REQUIRE([AC_PROG_CC])
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	479 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	480 AC_CACHE_CHECK([whether printf supports the grouping flag],
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	481 [gl_cv_func_printf_flag_grouping],
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	482 [
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	483 AC_TRY_RUN([
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	484 #include <stdio.h>
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	485 #include <string.h>
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	486 static char buf[100];
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	487 int main ()
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	488 {
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	489 if (sprintf (buf, "%'d %d", 1234567, 99) < 0
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	490 \|\| buf[strlen (buf) - 1] != '9')
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	491 return 1;
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	492 return 0;
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	493 }], [gl_cv_func_printf_flag_grouping=yes], [gl_cv_func_printf_flag_grouping=no],
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	494 [
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	495 changequote(,)dnl
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	496 case "$host_os" in
8805 c6df1b1d2c81 More info about Cygwin. Bruno Haible <bruno@clisp.org> parents: 8804 diff changeset	497 cygwin*) gl_cv_func_printf_flag_grouping="guessing no";;
8803 6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	498 netbsd*) gl_cv_func_printf_flag_grouping="guessing no";;
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	499 mingw* \| pw*) gl_cv_func_printf_flag_grouping="guessing no";;
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	500 *) gl_cv_func_printf_flag_grouping="guessing yes";;
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	501 esac
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	502 changequote([,])dnl
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	503 ])
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	504 ])
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	505 ])
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8763 diff changeset	506
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	507 dnl Test whether the *printf family of functions supports padding of non-finite
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	508 dnl values with the 0 flag correctly. (ISO C99 + TC1 + TC2.) See
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	509 dnl <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html>
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	510 dnl Result is gl_cv_func_printf_flag_zero.
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	511
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	512 AC_DEFUN([gl_PRINTF_FLAG_ZERO],
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	513 [
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	514 AC_REQUIRE([AC_PROG_CC])
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	515 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	516 AC_CACHE_CHECK([whether printf supports the zero flag correctly],
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	517 [gl_cv_func_printf_flag_zero],
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	518 [
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	519 AC_TRY_RUN([
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	520 #include <stdio.h>
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	521 #include <string.h>
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	522 static char buf[100];
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	523 int main ()
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	524 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	525 if (sprintf (buf, "%010f", 1.0 / 0.0, 33, 44, 55) < 0
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	526 \|\| (strcmp (buf, " inf") != 0
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	527 && strcmp (buf, " infinity") != 0))
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	528 return 1;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	529 return 0;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	530 }], [gl_cv_func_printf_flag_zero=yes], [gl_cv_func_printf_flag_zero=no],
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	531 [
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	532 changequote(,)dnl
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	533 case "$host_os" in
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	534 # Guess yes on glibc systems.
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	535 -gnu) gl_cv_func_printf_flag_zero="guessing yes";;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	536 # Guess yes on BeOS.
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	537 beos*) gl_cv_func_printf_flag_zero="guessing yes";;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	538 # If we don't know, assume the worst.
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	539 *) gl_cv_func_printf_flag_zero="guessing no";;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	540 esac
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	541 changequote([,])dnl
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	542 ])
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	543 ])
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	544 ])
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	545
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	546 dnl Test whether the snprintf function exists. (ISO C99, POSIX:2001)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	547 dnl Result is ac_cv_func_snprintf.
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	548
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	549 AC_DEFUN([gl_SNPRINTF_PRESENCE],
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	550 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	551 AC_CHECK_FUNCS_ONCE([snprintf])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	552 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	553
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	554 dnl Test whether the string produced by the snprintf function is always NUL
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	555 dnl terminated. (ISO C99, POSIX:2001)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	556 dnl Result is gl_cv_func_snprintf_truncation_c99.
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	557
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	558 AC_DEFUN([gl_SNPRINTF_TRUNCATION_C99],
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	559 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	560 AC_REQUIRE([AC_PROG_CC])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	561 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	562 AC_CACHE_CHECK([whether snprintf truncates the result as in C99],
8847 0c9ab5719ed4 Whitespace change. Bruno Haible <bruno@clisp.org> parents: 8840 diff changeset	563 [gl_cv_func_snprintf_truncation_c99],
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	564 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	565 AC_TRY_RUN([
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	566 #include <stdio.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	567 #include <string.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	568 static char buf[100];
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	569 int main ()
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	570 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	571 strcpy (buf, "ABCDEF");
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	572 snprintf (buf, 3, "%d %d", 4567, 89);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	573 if (memcmp (buf, "45\0DEF", 6) != 0)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	574 return 1;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	575 return 0;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	576 }], [gl_cv_func_snprintf_truncation_c99=yes], [gl_cv_func_snprintf_truncation_c99=no],
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	577 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	578 changequote(,)dnl
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	579 case "$host_os" in
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	580 # Guess yes on glibc systems.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	581 -gnu) gl_cv_func_snprintf_truncation_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	582 # Guess yes on FreeBSD >= 5.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	583 freebsd[1-4]*) gl_cv_func_snprintf_truncation_c99="guessing no";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	584 freebsd* \| kfreebsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	585 # Guess yes on MacOS X >= 10.3.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	586 darwin[1-6].*) gl_cv_func_snprintf_truncation_c99="guessing no";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	587 darwin*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	588 # Guess yes on OpenBSD >= 3.9.
8347 03bfd77e2c10 Add info about OpenBSD. Bruno Haible <bruno@clisp.org> parents: 8346 diff changeset	589 openbsd[1-2].* \| openbsd3.[0-8] \| openbsd3.[0-8].*)
03bfd77e2c10 Add info about OpenBSD. Bruno Haible <bruno@clisp.org> parents: 8346 diff changeset	590 gl_cv_func_snprintf_truncation_c99="guessing no";;
03bfd77e2c10 Add info about OpenBSD. Bruno Haible <bruno@clisp.org> parents: 8346 diff changeset	591 openbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	592 # Guess yes on Solaris >= 2.6.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	593 solaris2.[0-5]*) gl_cv_func_snprintf_truncation_c99="guessing no";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	594 solaris*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	595 # Guess yes on AIX >= 4.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	596 aix[1-3]*) gl_cv_func_snprintf_truncation_c99="guessing no";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	597 aix*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	598 # Guess yes on HP-UX >= 11.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	599 hpux[7-9]* \| hpux10*) gl_cv_func_snprintf_truncation_c99="guessing no";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	600 hpux*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	601 # Guess yes on IRIX >= 6.5.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	602 irix6.5) gl_cv_func_snprintf_truncation_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	603 # Guess yes on OSF/1 >= 5.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	604 osf[3-4]*) gl_cv_func_snprintf_truncation_c99="guessing no";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	605 osf*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	606 # Guess yes on NetBSD >= 3.
8350 4e430e6470b3 Be more conservative about the config.guess results on NetBSD. Bruno Haible <bruno@clisp.org> parents: 8349 diff changeset	607 netbsd[1-2]* \| netbsdelf[1-2]* \| netbsdaout[1-2]* \| netbsdcoff[1-2]*)
4e430e6470b3 Be more conservative about the config.guess results on NetBSD. Bruno Haible <bruno@clisp.org> parents: 8349 diff changeset	608 gl_cv_func_snprintf_truncation_c99="guessing no";;
4e430e6470b3 Be more conservative about the config.guess results on NetBSD. Bruno Haible <bruno@clisp.org> parents: 8349 diff changeset	609 netbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	610 # Guess yes on BeOS.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	611 beos*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	612 # If we don't know, assume the worst.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	613 *) gl_cv_func_snprintf_truncation_c99="guessing no";;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	614 esac
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	615 changequote([,])dnl
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	616 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	617 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	618 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	619
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	620 dnl Test whether the return value of the snprintf function is the number
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	621 dnl of bytes (excluding the terminating NUL) that would have been produced
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	622 dnl if the buffer had been large enough. (ISO C99, POSIX:2001)
8763 39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	623 dnl For example, this test program fails on IRIX 6.5:
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	624 dnl ---------------------------------------------------------------------
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	625 dnl #include <stdio.h>
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	626 dnl int main()
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	627 dnl {
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	628 dnl static char buf[8];
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	629 dnl int retval = snprintf (buf, 3, "%d", 12345);
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	630 dnl return retval >= 0 && retval < 3;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	631 dnl }
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	632 dnl ---------------------------------------------------------------------
8353 2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	633 dnl Result is gl_cv_func_snprintf_retval_c99.
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	634
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	635 AC_DEFUN([gl_SNPRINTF_RETVAL_C99],
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	636 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	637 AC_REQUIRE([AC_PROG_CC])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	638 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	639 AC_CACHE_CHECK([whether snprintf returns a byte count as in C99],
8847 0c9ab5719ed4 Whitespace change. Bruno Haible <bruno@clisp.org> parents: 8840 diff changeset	640 [gl_cv_func_snprintf_retval_c99],
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	641 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	642 AC_TRY_RUN([
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	643 #include <stdio.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	644 #include <string.h>
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	645 static char buf[100];
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	646 int main ()
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	647 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	648 strcpy (buf, "ABCDEF");
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	649 if (snprintf (buf, 3, "%d %d", 4567, 89) != 7)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	650 return 1;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	651 return 0;
8353 2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	652 }], [gl_cv_func_snprintf_retval_c99=yes], [gl_cv_func_snprintf_retval_c99=no],
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	653 [
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	654 changequote(,)dnl
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	655 case "$host_os" in
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	656 # Guess yes on glibc systems.
8353 2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	657 -gnu) gl_cv_func_snprintf_retval_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	658 # Guess yes on FreeBSD >= 5.
8353 2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	659 freebsd[1-4]*) gl_cv_func_snprintf_retval_c99="guessing no";;
2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	660 freebsd* \| kfreebsd*) gl_cv_func_snprintf_retval_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	661 # Guess yes on MacOS X >= 10.3.
8353 2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	662 darwin[1-6].*) gl_cv_func_snprintf_retval_c99="guessing no";;
2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	663 darwin*) gl_cv_func_snprintf_retval_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	664 # Guess yes on OpenBSD >= 3.9.
8347 03bfd77e2c10 Add info about OpenBSD. Bruno Haible <bruno@clisp.org> parents: 8346 diff changeset	665 openbsd[1-2].* \| openbsd3.[0-8] \| openbsd3.[0-8].*)
8353 2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	666 gl_cv_func_snprintf_retval_c99="guessing no";;
2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	667 openbsd*) gl_cv_func_snprintf_retval_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	668 # Guess yes on Solaris >= 2.6.
8353 2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	669 solaris2.[0-5]*) gl_cv_func_snprintf_retval_c99="guessing no";;
2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	670 solaris*) gl_cv_func_snprintf_retval_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	671 # Guess yes on AIX >= 4.
8353 2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	672 aix[1-3]*) gl_cv_func_snprintf_retval_c99="guessing no";;
2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	673 aix*) gl_cv_func_snprintf_retval_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	674 # Guess yes on NetBSD >= 3.
8350 4e430e6470b3 Be more conservative about the config.guess results on NetBSD. Bruno Haible <bruno@clisp.org> parents: 8349 diff changeset	675 netbsd[1-2]* \| netbsdelf[1-2]* \| netbsdaout[1-2]* \| netbsdcoff[1-2]*)
8353 2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	676 gl_cv_func_snprintf_retval_c99="guessing no";;
2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	677 netbsd*) gl_cv_func_snprintf_retval_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	678 # Guess yes on BeOS.
8353 2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	679 beos*) gl_cv_func_snprintf_retval_c99="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	680 # If we don't know, assume the worst.
8353 2beaea8e12f9 Rename a cache variable. Bruno Haible <bruno@clisp.org> parents: 8352 diff changeset	681 *) gl_cv_func_snprintf_retval_c99="guessing no";;
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	682 esac
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	683 changequote([,])dnl
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	684 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	685 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	686 ])
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	687
8352 741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	688 dnl Test whether the snprintf function supports the %n format directive
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	689 dnl also in truncated portions of the format string. (ISO C99, POSIX:2001)
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	690 dnl Result is gl_cv_func_snprintf_directive_n.
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	691
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	692 AC_DEFUN([gl_SNPRINTF_DIRECTIVE_N],
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	693 [
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	694 AC_REQUIRE([AC_PROG_CC])
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	695 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	696 AC_CACHE_CHECK([whether snprintf fully supports the 'n' directive],
8847 0c9ab5719ed4 Whitespace change. Bruno Haible <bruno@clisp.org> parents: 8840 diff changeset	697 [gl_cv_func_snprintf_directive_n],
8352 741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	698 [
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	699 AC_TRY_RUN([
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	700 #include <stdio.h>
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	701 #include <string.h>
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	702 static char buf[100];
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	703 int main ()
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	704 {
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	705 int count = -1;
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	706 snprintf (buf, 4, "%d %n", 12345, &count, 33, 44, 55);
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	707 if (count != 6)
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	708 return 1;
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	709 return 0;
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	710 }], [gl_cv_func_snprintf_directive_n=yes], [gl_cv_func_snprintf_directive_n=no],
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	711 [
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	712 changequote(,)dnl
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	713 case "$host_os" in
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	714 # Guess yes on glibc systems.
8352 741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	715 -gnu) gl_cv_func_snprintf_directive_n="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	716 # Guess yes on FreeBSD >= 5.
8352 741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	717 freebsd[1-4]*) gl_cv_func_snprintf_directive_n="guessing no";;
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	718 freebsd* \| kfreebsd*) gl_cv_func_snprintf_directive_n="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	719 # Guess yes on MacOS X >= 10.3.
8352 741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	720 darwin[1-6].*) gl_cv_func_snprintf_directive_n="guessing no";;
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	721 darwin*) gl_cv_func_snprintf_directive_n="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	722 # Guess yes on Solaris >= 2.6.
8352 741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	723 solaris2.[0-5]*) gl_cv_func_snprintf_directive_n="guessing no";;
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	724 solaris*) gl_cv_func_snprintf_directive_n="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	725 # Guess yes on AIX >= 4.
8352 741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	726 aix[1-3]*) gl_cv_func_snprintf_directive_n="guessing no";;
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	727 aix*) gl_cv_func_snprintf_directive_n="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	728 # Guess yes on IRIX >= 6.5.
8352 741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	729 irix6.5) gl_cv_func_snprintf_directive_n="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	730 # Guess yes on OSF/1 >= 5.
8352 741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	731 osf[3-4]*) gl_cv_func_snprintf_directive_n="guessing no";;
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	732 osf*) gl_cv_func_snprintf_directive_n="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	733 # Guess yes on NetBSD >= 3.
8352 741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	734 netbsd[1-2]* \| netbsdelf[1-2]* \| netbsdaout[1-2]* \| netbsdcoff[1-2]*)
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	735 gl_cv_func_snprintf_directive_n="guessing no";;
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	736 netbsd*) gl_cv_func_snprintf_directive_n="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	737 # Guess yes on BeOS.
8352 741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	738 beos*) gl_cv_func_snprintf_directive_n="guessing yes";;
8380 61a6d421d6f2 Make shell snippets copy&pastable. Bruno Haible <bruno@clisp.org> parents: 8353 diff changeset	739 # If we don't know, assume the worst.
8352 741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	740 *) gl_cv_func_snprintf_directive_n="guessing no";;
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	741 esac
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	742 changequote([,])dnl
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	743 ])
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	744 ])
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	745 ])
741f8a5caa9c Add an 8th test, against HP-UX. Bruno Haible <bruno@clisp.org> parents: 8351 diff changeset	746
8763 39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	747 dnl Test whether the vsnprintf function, when passed a zero size, produces no
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	748 dnl output. (ISO C99, POSIX:2001)
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	749 dnl For example, snprintf nevertheless writes a NUL byte in this case
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	750 dnl on OSF/1 5.1:
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	751 dnl ---------------------------------------------------------------------
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	752 dnl #include <stdio.h>
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	753 dnl int main()
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	754 dnl {
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	755 dnl static char buf[8] = "DEADBEEF";
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	756 dnl snprintf (buf, 0, "%d", 12345);
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	757 dnl return buf[0] != 'D';
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	758 dnl }
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	759 dnl ---------------------------------------------------------------------
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	760 dnl And vsnprintf writes any output without bounds in this case, behaving like
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	761 dnl vsprintf, on HP-UX 11 and OSF/1 5.1:
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	762 dnl ---------------------------------------------------------------------
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	763 dnl #include <stdarg.h>
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	764 dnl #include <stdio.h>
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	765 dnl static int my_snprintf (char buf, int size, const char format, ...)
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	766 dnl {
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	767 dnl va_list args;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	768 dnl int ret;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	769 dnl va_start (args, format);
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	770 dnl ret = vsnprintf (buf, size, format, args);
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	771 dnl va_end (args);
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	772 dnl return ret;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	773 dnl }
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	774 dnl int main()
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	775 dnl {
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	776 dnl static char buf[8] = "DEADBEEF";
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	777 dnl my_snprintf (buf, 0, "%d", 12345);
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	778 dnl return buf[0] != 'D';
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	779 dnl }
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	780 dnl ---------------------------------------------------------------------
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	781 dnl Result is gl_cv_func_vsnprintf_zerosize_c99.
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	782
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	783 AC_DEFUN([gl_VSNPRINTF_ZEROSIZE_C99],
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	784 [
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	785 AC_REQUIRE([AC_PROG_CC])
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	786 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	787 AC_CACHE_CHECK([whether vsnprintf respects a zero size as in C99],
8847 0c9ab5719ed4 Whitespace change. Bruno Haible <bruno@clisp.org> parents: 8840 diff changeset	788 [gl_cv_func_vsnprintf_zerosize_c99],
8763 39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	789 [
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	790 AC_TRY_RUN([
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	791 #include <stdarg.h>
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	792 #include <stdio.h>
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	793 static int my_snprintf (char buf, int size, const char format, ...)
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	794 {
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	795 va_list args;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	796 int ret;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	797 va_start (args, format);
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	798 ret = vsnprintf (buf, size, format, args);
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	799 va_end (args);
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	800 return ret;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	801 }
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	802 int main()
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	803 {
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	804 static char buf[8] = "DEADBEEF";
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	805 my_snprintf (buf, 0, "%d", 12345);
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	806 return buf[0] != 'D';
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	807 }],
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	808 [gl_cv_func_vsnprintf_zerosize_c99=yes],
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	809 [gl_cv_func_vsnprintf_zerosize_c99=no],
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	810 [
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	811 changequote(,)dnl
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	812 case "$host_os" in
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	813 # Guess yes on glibc systems.
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	814 -gnu) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	815 # Guess yes on FreeBSD >= 5.
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	816 freebsd[1-4]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	817 freebsd* \| kfreebsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	818 # Guess yes on MacOS X >= 10.3.
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	819 darwin[1-6].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	820 darwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
8805 c6df1b1d2c81 More info about Cygwin. Bruno Haible <bruno@clisp.org> parents: 8804 diff changeset	821 # Guess yes on Cygwin.
c6df1b1d2c81 More info about Cygwin. Bruno Haible <bruno@clisp.org> parents: 8804 diff changeset	822 cygwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
8763 39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	823 # Guess yes on Solaris >= 2.6.
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	824 solaris2.[0-5]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	825 solaris*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	826 # Guess yes on AIX >= 4.
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	827 aix[1-3]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	828 aix*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	829 # Guess yes on IRIX >= 6.5.
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	830 irix6.5) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	831 # Guess yes on NetBSD >= 3.
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	832 netbsd[1-2]* \| netbsdelf[1-2]* \| netbsdaout[1-2]* \| netbsdcoff[1-2]*)
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	833 gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	834 netbsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	835 # Guess yes on BeOS.
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	836 beos*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	837 # Guess yes on mingw.
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	838 mingw* \| pw*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	839 # If we don't know, assume the worst.
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	840 *) gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	841 esac
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	842 changequote([,])dnl
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	843 ])
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	844 ])
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	845 ])
39bb5430fc0e Guard against vsnprintf implementations that mishandle a size=0 argument. Bruno Haible <bruno@clisp.org> parents: 8676 diff changeset	846
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	847 dnl The results of these tests on various platforms are:
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	848 dnl
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	849 dnl 1 = gl_PRINTF_SIZES_C99
8849 c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	850 dnl 2 = gl_PRINTF_LONG_DOUBLE
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	851 dnl 3 = gl_PRINTF_INFINITE
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	852 dnl 4 = gl_PRINTF_INFINITE_LONG_DOUBLE
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	853 dnl 5 = gl_PRINTF_DIRECTIVE_A
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	854 dnl 6 = gl_PRINTF_DIRECTIVE_F
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	855 dnl 7 = gl_PRINTF_DIRECTIVE_N
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	856 dnl 8 = gl_PRINTF_POSITIONS
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	857 dnl 9 = gl_PRINTF_FLAG_GROUPING
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	858 dnl 10 = gl_PRINTF_FLAG_ZERO
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	859 dnl 11 = gl_SNPRINTF_PRESENCE
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	860 dnl 12 = gl_SNPRINTF_TRUNCATION_C99
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	861 dnl 13 = gl_SNPRINTF_RETVAL_C99
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	862 dnl 14 = gl_SNPRINTF_DIRECTIVE_N
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	863 dnl 15 = gl_VSNPRINTF_ZEROSIZE_C99
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	864 dnl
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	865 dnl 1 = checking whether printf supports size specifiers as in C99...
8849 c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	866 dnl 2 = checking whether printf supports 'long double' arguments...
c869de19cb7f Swap the tests 2 and 3. Bruno Haible <bruno@clisp.org> parents: 8848 diff changeset	867 dnl 3 = checking whether printf supports infinite 'double' arguments...
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	868 dnl 4 = checking whether printf supports infinite 'long double' arguments...
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	869 dnl 5 = checking whether printf supports the 'a' and 'A' directives...
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	870 dnl 6 = checking whether printf supports the 'F' directive...
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	871 dnl 7 = checking whether printf supports the 'n' directive...
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	872 dnl 8 = checking whether printf supports POSIX/XSI format strings with positions...
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	873 dnl 9 = checking whether printf supports the grouping flag...
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	874 dnl 10 = checking whether printf supports the zero flag correctly...
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	875 dnl 11 = checking for snprintf...
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	876 dnl 12 = checking whether snprintf truncates the result as in C99...
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	877 dnl 13 = checking whether snprintf returns a byte count as in C99...
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	878 dnl 14 = checking whether snprintf fully supports the 'n' directive...
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	879 dnl 15 = checking whether vsnprintf respects a zero size as in C99...
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	880 dnl
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	881 dnl . = yes, # = no.
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: diff changeset	882 dnl
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	883 dnl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	884 dnl glibc 2.5 . . . . . . . . . . . . . . .
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	885 dnl glibc 2.3.6 . . . . # . . . . . . . . . .
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	886 dnl FreeBSD 5.4, 6.1 . . . . # . . . . # . . . . .
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	887 dnl MacOS X 10.3.9 . . . . # . . . . # . . . . .
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	888 dnl OpenBSD 3.9, 4.0 . ? ? ? # ? . . ? ? . . . ? ?
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	889 dnl Cygwin 2007 (= Cygwin 1.5.24) . ? ? ? # # . . . # . . . . .
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	890 dnl Cygwin 2006 (= Cygwin 1.5.19) # ? ? ? # # . . # # . . . . .
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	891 dnl Solaris 10 . . # # # . . . . # . . . . .
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	892 dnl Solaris 2.6 ... 9 # . # # # # . . . # . . . . .
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	893 dnl Solaris 2.5.1 # . # # # # . . . # # # # # #
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	894 dnl AIX 5.2 . . # # # . . . . # . . . . .
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	895 dnl AIX 4.3.2, 5.1 # . # # # # . . . # . . . . .
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	896 dnl HP-UX 11.31 . . . . # . . . . # . . # # .
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	897 dnl HP-UX 10.20, 11.{00,11,23} # . . . # # . . . # . . # # #
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	898 dnl IRIX 6.5 # . . . # # . . . # . . # . .
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	899 dnl OSF/1 5.1 # . # # # # . . . # . . # . #
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	900 dnl OSF/1 4.0d # . # # # # . . . # # # # # #
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	901 dnl NetBSD 4.0 . ? ? ? ? ? . . ? ? . . . ? ?
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	902 dnl NetBSD 3.0 . . . . # # . # # # . . . . .
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	903 dnl BeOS # # . # # # . # . . . . . . .
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8849 diff changeset	904 dnl mingw # # # # # # . # # # . # # # .

Mercurial > hg > octave-shane > gnulib-hg

annotate m4/printf.m4 @ 8860:771a56a41b5b