summaryrefslogtreecommitdiffstats
path: root/contrib/argp-standalone/strcasecmp.c
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/argp-standalone/strcasecmp.c')
-rw-r--r--contrib/argp-standalone/strcasecmp.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/contrib/argp-standalone/strcasecmp.c b/contrib/argp-standalone/strcasecmp.c
new file mode 100644
index 0000000..9c16372
--- /dev/null
+++ b/contrib/argp-standalone/strcasecmp.c
@@ -0,0 +1,29 @@
+/* strcasecmp.c
+ *
+ */
+
+/* Written by Niels Möller <nisse@lysator.liu.se>
+ *
+ * This file is hereby placed in the public domain.
+ */
+
+#include <ctype.h>
+int strcasecmp(const char *, const char *);
+
+int strcasecmp(const char *s1, const char *s2)
+{
+ unsigned i;
+
+ for (i = 0; s1[i] && s2[i]; i++)
+ {
+ unsigned char c1 = tolower( (unsigned char) s1[i]);
+ unsigned char c2 = tolower( (unsigned char) s2[i]);
+
+ if (c1 < c2)
+ return -1;
+ else if (c1 > c2)
+ return 1;
+ }
+
+ return !s2[i] - !s1[i];
+}