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view m4/strtoull.m4 @ 9600:99268e709d31
Avoid quadratic strstr implementations.
* lib/strstr.c: New file.
* m4/strstr.m4: Likewise.
* modules/strstr: Likewise.
* modules/strstr-tests: Likewise.
* tests/test-strstr.c: Likewise.
* lib/string.in.h (rpl_strstr): Declare.
(memmem) [GNULIB_POSIXCHECK]: Document speed issue.
* m4/string_h.m4 (gl_HEADER_STRING_H_DEFAULTS): Support strstr.
* modules/string (Makefile.am): Likewise.
* MODULES.html.sh (string handling): Mention new module.
* doc/functions/strstr.texi (strstr): Document the bug.
Signed-off-by: Eric Blake <ebb9@byu.net>
author | Eric Blake <ebb9@byu.net> |
---|---|
date | Thu, 10 Jan 2008 07:38:11 -0700 |
parents | 19c2e5121b2f |
children | 66414a3e577c |
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# strtoull.m4 serial 4 dnl Copyright (C) 2002, 2004, 2006 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_STRTOULL], [ dnl We don't need (and can't compile) the replacement strtoull dnl unless the type 'unsigned long long int' exists. AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT]) if test "$ac_cv_type_unsigned_long_long_int" = yes; then AC_REPLACE_FUNCS(strtoull) if test $ac_cv_func_strtoull = no; then gl_PREREQ_STRTOULL fi fi ]) # Prerequisites of lib/strtoull.c. AC_DEFUN([gl_PREREQ_STRTOULL], [ : ])