inferno-os tree was separated from the inferno-os-android (separated from the Android driver)

1 files changed, 22 insertions, 0 deletions

diff --git a/libkern/memcmp.c b/libkern/memcmp.c
new file mode 100644
index 0000000..01be7c6
--- /dev/null
+++ b/libkern/memcmp.c
@@ -0,0 +1,22 @@
+#include	<lib9.h>
+
+int
+memcmp(void *a1, void *a2, ulong n)
+{
+	uchar *s1, *s2;
+	uint c1, c2;
+
+	s1 = a1;
+	s2 = a2;
+	while(n > 0) {
+		c1 = *s1++;
+		c2 = *s2++;
+		if(c1 != c2) {
+			if(c1 > c2)
+				return 1;
+			return -1;
+		}
+		n--;
+	}
+	return 0;
+}