Mercurial > hg > octave-kai > gnulib-hg
annotate m4/wcsrtombs.m4 @ 13169:b55181348b50
fseeko: Fix C++ test error on mingw.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Mon, 05 Apr 2010 18:18:11 +0200 |
| parents | 6c2a74cfe75b |
| children | da9779900713 |
| rev | line source |
|---|---|
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13158
6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
|
1 # wcsrtombs.m4 serial 5 |
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12559
c2cbabec01dd
update nearly all FSF copyright year lists to include 2010
Jim Meyering <meyering@redhat.com>
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changeset
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2 dnl Copyright (C) 2008-2010 Free Software Foundation, Inc. |
| 10941 | 3 dnl This file is free software; the Free Software Foundation |
| 4 dnl gives unlimited permission to copy and/or distribute it, | |
| 5 dnl with or without modifications, as long as this notice is preserved. | |
| 6 | |
| 7 AC_DEFUN([gl_FUNC_WCSRTOMBS], | |
| 8 [ | |
| 9 AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) | |
| 10 | |
| 11 AC_REQUIRE([AC_TYPE_MBSTATE_T]) | |
|
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4fe203c3f828
Replace wcrtomb, wcsrtombs, wcsnrtombs if mbstate_t has to be replaced.
Bruno Haible <bruno@clisp.org>
parents:
11493
diff
changeset
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12 gl_MBSTATE_T_BROKEN |
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13158
6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
|
13 |
| 10941 | 14 AC_CHECK_FUNCS_ONCE([wcsrtombs]) |
| 15 if test $ac_cv_func_wcsrtombs = no; then | |
| 16 HAVE_WCSRTOMBS=0 | |
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13158
6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
|
17 else |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
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18 if test $REPLACE_MBSTATE_T = 1; then |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
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19 REPLACE_WCSRTOMBS=1 |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
|
20 else |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
|
21 gl_WCSRTOMBS_TERMINATION |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
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22 gl_WCSRTOMBS_NULL |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
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23 case "$gl_cv_func_wcsrtombs_termination" in |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
|
24 *yes) ;; |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
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25 *) AC_DEFINE([WCSRTOMBS_TERMINATION_BUG], [1], |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
|
26 [Define if the wcsrtombs function may set the source pointer to NULL without NUL-terminating the destination.]) |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
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27 REPLACE_WCSRTOMBS=1 ;; |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
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28 esac |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
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29 case "$gl_cv_func_wcsrtombs_null" in |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
|
30 *yes) ;; |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
|
31 *) AC_DEFINE([WCSRTOMBS_NULL_ARG_BUG], [1], |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
|
32 [Define if the wcsrtombs function has the NULL destination argument bug.]) |
|
6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
|
33 REPLACE_WCSRTOMBS=1 ;; |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
|
34 esac |
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6c2a74cfe75b
mbsinit, mbrtowc, wcrtomb: Improve idioms.
Bruno Haible <bruno@clisp.org>
parents:
12559
diff
changeset
|
35 fi |
| 10941 | 36 fi |
| 37 if test $HAVE_WCSRTOMBS = 0 || test $REPLACE_WCSRTOMBS = 1; then | |
| 38 gl_REPLACE_WCHAR_H | |
| 39 AC_LIBOBJ([wcsrtombs]) | |
| 10943 | 40 AC_LIBOBJ([wcsrtombs-state]) |
| 10941 | 41 gl_PREREQ_WCSRTOMBS |
| 42 fi | |
| 43 ]) | |
| 44 | |
| 45 dnl Test whether the wcsrtombs implementation stores a non-NULL source pointer | |
| 46 dnl as long as it has not written the final NUL byte to the destination string. | |
| 47 dnl The OSF/1 5.1 implementation stores a NULL pointer already after storing | |
| 48 dnl the last non-NUL character, even if there is no more room for the | |
| 49 dnl terminating NUL character. | |
| 50 dnl Result is gl_cv_func_wcsrtombs_termination. | |
| 51 | |
| 52 AC_DEFUN([gl_WCSRTOMBS_TERMINATION], | |
| 53 [ | |
| 54 AC_REQUIRE([AC_PROG_CC]) | |
| 55 AC_REQUIRE([gt_LOCALE_FR]) | |
| 56 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 57 AC_CACHE_CHECK([whether wcsrtombs updates the source pointer correctly], | |
| 58 [gl_cv_func_wcsrtombs_termination], | |
| 59 [ | |
| 60 dnl Initial guess, used when cross-compiling or when no suitable locale | |
| 61 dnl is present. | |
| 62 changequote(,)dnl | |
| 63 case "$host_os" in | |
| 64 # Guess no on OSF/1. | |
| 65 osf*) gl_cv_func_wcsrtombs_termination="guessing no" ;; | |
| 66 # Guess yes otherwise. | |
| 67 *) gl_cv_func_wcsrtombs_termination="guessing yes" ;; | |
| 68 esac | |
| 69 changequote([,])dnl | |
| 70 if test $LOCALE_FR != none; then | |
| 71 AC_TRY_RUN([ | |
| 72 #include <locale.h> | |
| 73 #include <stdlib.h> | |
| 74 #include <wchar.h> | |
| 75 int main () | |
| 76 { | |
| 77 if (setlocale (LC_ALL, "$LOCALE_FR") != NULL) | |
| 78 { | |
| 79 const char original[] = "B\374\337er"; | |
| 80 wchar_t input[10]; | |
| 81 | |
| 82 if (mbstowcs (input, original, 10) == 5) | |
| 83 { | |
| 84 const wchar_t *src = input; | |
| 85 char output[5]; | |
| 86 wcsrtombs (output, &src, 5, NULL); | |
| 87 if (src != input + 5) | |
| 88 return 1; | |
| 89 } | |
| 90 } | |
| 91 return 0; | |
| 92 }], | |
| 93 [gl_cv_func_wcsrtombs_termination=yes], | |
| 94 [gl_cv_func_wcsrtombs_termination=no], | |
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11493
fcd8e65744b2
Fix cross-compilation results.
Bruno Haible <bruno@clisp.org>
parents:
10943
diff
changeset
|
95 [:]) |
| 10941 | 96 fi |
| 97 ]) | |
| 98 ]) | |
| 99 | |
| 100 dnl Test whether the wcsrtombs implementation supports a NULL argument | |
| 101 dnl correctly. This is not the case on HP-UX 11.11 and OSF/1 5.1: These | |
| 102 dnl implementations updates the source pointer also if the destination argument | |
| 103 dnl is NULL. | |
| 104 dnl Result is gl_cv_func_wcsrtombs_null. | |
| 105 | |
| 106 AC_DEFUN([gl_WCSRTOMBS_NULL], | |
| 107 [ | |
| 108 AC_REQUIRE([AC_PROG_CC]) | |
| 109 AC_REQUIRE([gt_LOCALE_FR]) | |
| 110 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
| 111 AC_CACHE_CHECK([whether wcsrtombs supports a NULL argument correctly], | |
| 112 [gl_cv_func_wcsrtombs_null], | |
| 113 [ | |
| 114 dnl Initial guess, used when cross-compiling or when no suitable locale | |
| 115 dnl is present. | |
| 116 changequote(,)dnl | |
| 117 case "$host_os" in | |
| 118 # Guess no on HP-UX and OSF/1. | |
| 119 hpux* | osf*) gl_cv_func_wcsrtombs_null="guessing no" ;; | |
| 120 # Guess yes otherwise. | |
| 121 *) gl_cv_func_wcsrtombs_null="guessing yes" ;; | |
| 122 esac | |
| 123 changequote([,])dnl | |
| 124 if test $LOCALE_FR != none; then | |
| 125 AC_TRY_RUN([ | |
| 126 #include <locale.h> | |
| 127 #include <stdlib.h> | |
| 128 #include <wchar.h> | |
| 129 int main () | |
| 130 { | |
| 131 if (setlocale (LC_ALL, "$LOCALE_FR") != NULL) | |
| 132 { | |
| 133 const char original[] = "B\374\337er"; | |
| 134 wchar_t input[10]; | |
| 135 | |
| 136 if (mbstowcs (input, original, 10) == 5) | |
| 137 { | |
| 138 const wchar_t *src = input; | |
| 139 wcsrtombs (NULL, &src, 10, NULL); | |
| 140 if (src != input) | |
| 141 return 1; | |
| 142 } | |
| 143 } | |
| 144 return 0; | |
| 145 }], | |
| 146 [gl_cv_func_wcsrtombs_null=yes], | |
| 147 [gl_cv_func_wcsrtombs_null=no], | |
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11493
fcd8e65744b2
Fix cross-compilation results.
Bruno Haible <bruno@clisp.org>
parents:
10943
diff
changeset
|
148 [:]) |
| 10941 | 149 fi |
| 150 ]) | |
| 151 ]) | |
| 152 | |
| 153 # Prerequisites of lib/wcsrtombs.c. | |
| 154 AC_DEFUN([gl_PREREQ_WCSRTOMBS], [ | |
| 155 : | |
| 156 ]) |