about summary refs log tree commit diff
path: root/sysdeps/generic/strcmp.c
diff options
context:
space:
mode:
authorRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
committerRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
commit28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch)
tree15f07c4c43d635959c6afee96bde71fb1b3614ee /sysdeps/generic/strcmp.c
downloadglibc-28f540f45bbacd939bfd07f213bcad2bf730b1bf.tar.gz
glibc-28f540f45bbacd939bfd07f213bcad2bf730b1bf.tar.xz
glibc-28f540f45bbacd939bfd07f213bcad2bf730b1bf.zip
initial import
Diffstat (limited to 'sysdeps/generic/strcmp.c')
-rw-r--r--sysdeps/generic/strcmp.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/generic/strcmp.c b/sysdeps/generic/strcmp.c
new file mode 100644
index 0000000000..ec0c1e6b00
--- /dev/null
+++ b/sysdeps/generic/strcmp.c
@@ -0,0 +1,43 @@
+/* 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;
+}