1 files changed, 31 insertions, 0 deletions
diff --git a/src/string/memcpy.c b/src/string/memcpy.c
new file mode 100644
index 00000000..f53fe5d8
--- /dev/null
+++ b/src/string/memcpy.c
@@ -0,0 +1,31 @@
+#include <string.h>
+#include "nonstd/assert.h"
+
+/** copy memory **/
+void * memcpy(void * restrict s1, const void * restrict s2, size_t n)
+{
+	char *dst = (char*)s1;
+	char *src = (char*)s2;
+	size_t i = 0;
+
+	ASSERT_NONNULL(s1);
+	ASSERT_NONNULL(s2);
+	ASSERT_NOOVERLAP(s1, s2, n);
+
+	for (i = 0; i < n; i++) {
+		dst[i] = src[i];
+	}
+
+	/*
+	RETURN_ALWAYS(ARGUMENT(s1));
+	*/
+	return dst;
+}
+
+/***
+copies ARGUMENT(n) bytes from the object at ARGUMENT(s2) to the object at
+ARGUMENT(s1).
+***/
+/*
+STDC(1)
+*/