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- /* Copyright (C) 1991 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- #include <ansidecl.h>
- #include <string.h>
- #include <memcopy.h>
-
- /* Compare S1 and S2, returning less than, equal to or
- greater than zero if S1 is lexiographically less than,
- equal to or greater than S2. */
- int
- DEFUN(strcmp, (p1, p2), CONST char *p1 AND CONST char *p2)
- {
- register CONST unsigned char *s1 = (CONST unsigned char *) p1;
- register CONST unsigned char *s2 = (CONST unsigned char *) p2;
- unsigned reg_char c1, c2;
-
- do
- {
- c1 = (unsigned char) *s1++;
- c2 = (unsigned char) *s2++;
- if (c1 == '\0')
- return c1 - c2;
- }
- while (c1 == c2);
-
- return c1 - c2;
- }
-