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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 e0804993a043
children b5e42ef33b49
line wrap: on
line source

# xalloc.m4 serial 16
dnl Copyright (C) 2002, 2003, 2004, 2005, 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_XALLOC],
[
  AC_LIBOBJ([xmalloc])

  gl_PREREQ_XALLOC
  gl_PREREQ_XMALLOC
])

# Prerequisites of lib/xalloc.h.
AC_DEFUN([gl_PREREQ_XALLOC], [
  AC_REQUIRE([gl_INLINE])
  :
])

# Prerequisites of lib/xmalloc.c.
AC_DEFUN([gl_PREREQ_XMALLOC], [
  :
])