summaryrefslogtreecommitdiff
path: root/lib/libc/string/memcmp.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/libc/string/memcmp.c')
-rw-r--r--lib/libc/string/memcmp.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/lib/libc/string/memcmp.c b/lib/libc/string/memcmp.c
new file mode 100644
index 00000000..5efb282f
--- /dev/null
+++ b/lib/libc/string/memcmp.c
@@ -0,0 +1,14 @@
+#include <stddef.h>
+
+int memcmp(const void *s1, const void *s2, size_t n)
+{
+ const unsigned char *p1 = s1;
+ const unsigned char *p2 = s2;
+ while (n--) {
+ if (*p1 != *p2)
+ return *p1 - *p2;
+ p1++;
+ p2++;
+ }
+ return 0;
+}