lib/memcmp2.h

/* Compare two memory areas with possibly different lengths.
   Copyright (C) 2009-2026 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/>.  */

#ifndef MEMCMP2_H
#define MEMCMP2_H

/* This file uses _GL_ATTRIBUTE_PURE.  */
#if !_GL_CONFIG_H_INCLUDED
 #error "Please include config.h first."
#endif

#include <stddef.h>

#ifdef __cplusplus
extern "C" {
#endif


/* Compare the memory regions S1 = [s1..s1+N1-1], S2 = [s2..s2+n2-1],
   lexicographically.
   This function's result is locale independent, unlike memcoll()'s.
   Return a negative number if S1 < S2, a positive number if S1 > S2, or
   0 if S1 and S2 have the same contents.  */
extern int memcmp2 (const char *s1, size_t n1, const char *s2, size_t n2)
  _GL_ATTRIBUTE_PURE;


#ifdef __cplusplus
}
#endif

#endif /* MEMCMP2_H */