/* Copyright (C) 1991-2024 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ #include #undef strchr #undef index #ifdef STRCHR # define strchr STRCHR #endif /* Find the first occurrence of C in S. */ char * strchr (const char *s, int c_in) { char *r = __strchrnul (s, c_in); return (*(unsigned char *)r == (unsigned char)c_in) ? r : NULL; } #ifndef STRCHR weak_alias (strchr, index) libc_hidden_builtin_def (strchr) #endif