rm_/lib/memchr2.h
2022-07-28 14:16:50 +08:00

33 lines
1.1 KiB
C

/* Scan memory for the first of two bytes.
Copyright (C) 2008-2022 Free Software Foundation, Inc.
This file 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.
This file 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 this program. If not, see <https://www.gnu.org/licenses/>. */
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Return the first address of either C1 or C2 (treated as unsigned
char) that occurs within N bytes of the memory region S. If
neither byte appears, return NULL. */
extern void *memchr2 (void const *s, int c1, int c2, size_t n)
_GL_ATTRIBUTE_PURE;
#ifdef __cplusplus
}
#endif