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- /* memcmp -- compare two memory regions.
- Copyright (C) 1991 Free Software Foundation, Inc.
-
- This file is part of the libiberty library.
- Libiberty is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- Libiberty 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with libiberty; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
-
- /*
-
- NAME
-
- memcmp -- compare two memory regions
-
- SYNOPSIS
-
- int memcmp (const void *from, const void *to, size_t count)
-
- DESCRIPTION
-
- Compare two memory regions and return less than,
- equal to, or greater than zero, according to lexicographical
- ordering of the compared regions.
- */
-
- #include <ansidecl.h>
- #ifdef __STDC__
- #include <stddef.h>
- #else
- #define size_t unsigned long
- #endif
-
- int
- DEFUN(memcmp, (str1, str2, count),
- PTRCONST str1 AND PTRCONST str2 AND size_t count)
- {
- register unsigned char *s1 = (unsigned char*)str1;
- register unsigned char *s2 = (unsigned char*)str2;
-
- while (count-- > 0)
- {
- if (*s1++ != *s2++)
- return s1[-1] < s2[-1] ? -1 : 1;
- }
- return 0;
- }
-
-