summaryrefslogtreecommitdiff
path: root/libkern/strcmp.c
diff options
context:
space:
mode:
Diffstat (limited to 'libkern/strcmp.c')
-rw-r--r--libkern/strcmp.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/libkern/strcmp.c b/libkern/strcmp.c
new file mode 100644
index 00000000..f2a7e581
--- /dev/null
+++ b/libkern/strcmp.c
@@ -0,0 +1,19 @@
+#include <lib9.h>
+
+int
+strcmp(char *s1, char *s2)
+{
+ unsigned c1, c2;
+
+ for(;;) {
+ c1 = *s1++;
+ c2 = *s2++;
+ if(c1 != c2) {
+ if(c1 > c2)
+ return 1;
+ return -1;
+ }
+ if(c1 == 0)
+ return 0;
+ }
+}