Blame string/rawmemchr.c

Packit 6c4009
/* Copyright (C) 1991-2018 Free Software Foundation, Inc.
Packit 6c4009
   This file is part of the GNU C Library.
Packit 6c4009
Packit 6c4009
   The GNU C Library is free software; you can redistribute it and/or
Packit 6c4009
   modify it under the terms of the GNU Lesser General Public
Packit 6c4009
   License as published by the Free Software Foundation; either
Packit 6c4009
   version 2.1 of the License, or (at your option) any later version.
Packit 6c4009
Packit 6c4009
   The GNU C Library is distributed in the hope that it will be useful,
Packit 6c4009
   but WITHOUT ANY WARRANTY; without even the implied warranty of
Packit 6c4009
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Packit 6c4009
   Lesser General Public License for more details.
Packit 6c4009
Packit 6c4009
   You should have received a copy of the GNU Lesser General Public
Packit 6c4009
   License along with the GNU C Library; if not, see
Packit 6c4009
   <http://www.gnu.org/licenses/>.  */
Packit 6c4009
Packit 6c4009
#include <string.h>
Packit 6c4009
#include <libc-diag.h>
Packit 6c4009
Packit 6c4009
#ifndef RAWMEMCHR
Packit 6c4009
# define RAWMEMCHR __rawmemchr
Packit 6c4009
#endif
Packit 6c4009
Packit 6c4009
/* Find the first occurrence of C in S.  */
Packit 6c4009
void *
Packit 6c4009
RAWMEMCHR (const void *s, int c)
Packit 6c4009
{
Packit 6c4009
  DIAG_PUSH_NEEDS_COMMENT;
Packit 6c4009
#if __GNUC_PREREQ (7, 0)
Packit 6c4009
  /* GCC 8 warns about the size passed to memchr being larger than
Packit 6c4009
     PTRDIFF_MAX; the use of SIZE_MAX is deliberate here.  */
Packit 6c4009
  DIAG_IGNORE_NEEDS_COMMENT (8, "-Wstringop-overflow=");
Packit 6c4009
#endif
Packit 6c4009
  if (c != '\0')
Packit 6c4009
    return memchr (s, c, (size_t)-1);
Packit 6c4009
  DIAG_POP_NEEDS_COMMENT;
Packit 6c4009
  return (char *)s + strlen (s);
Packit 6c4009
}
Packit 6c4009
libc_hidden_def (__rawmemchr)
Packit 6c4009
weak_alias (__rawmemchr, rawmemchr)