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-rw-r--r--libc/string/generic/strcmp.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/libc/string/generic/strcmp.c b/libc/string/generic/strcmp.c
new file mode 100644
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+++ b/libc/string/generic/strcmp.c
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+/* Copyright (C) 1991, 1996, 1997, 2003 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 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.
+
+ 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <string.h>
+#include <locale.h>
+
+#include "memcopy.h"
+
+#undef strcmp
+
+#ifdef __LOCALE_C_ONLY
+weak_alias(strcmp,strcoll);
+#endif /* __LOCALE_C_ONLY */
+
+/* Compare S1 and S2, returning less than, equal to or
+ greater than zero if S1 is lexicographically less than,
+ equal to or greater than S2. */
+int
+strcmp (p1, p2)
+ const char *p1;
+ 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;
+}