scc

commit 673610fb8b9defeab63b90549251dfc885fa152d
parent f8fd3858424b64391e582fc7e53f8a63ee113d98
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Thu, 16 Feb 2017 22:48:02 +0100

[libc] Add memcpy()

Diffstat:
M
libc/src/Makefile
 | 
2
+-
A
libc/src/memcpy.c
 | 
13
+++++++++++++

2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/libc/src/Makefile b/libc/src/Makefile
@@ -3,7 +3,7 @@
 
 LIBCOBJ = assert.o strcpy.o strcmp.o strlen.o strchr.o \
           strrchr.o strcat.o strncpy.o strncat.o \
-          memset.o
+          memset.o memcpy.o
 
 all: libc.a
 
diff --git a/libc/src/memcpy.c b/libc/src/memcpy.c
@@ -0,0 +1,13 @@
+/* See LICENSE file for copyright and license details. */
+
+#include <string.h>
+
+void *
+memcpy(void *dst, const void *src, size_t n)
+{
+	char *s1 = dst, *s2 = (char *) src;
+
+	while (n-- > 0)
+		*s1++ = *s2++;
+	return dst;
+}