X-Git-Url: https://pd.if.org/git/?p=zos;a=blobdiff_plain;f=klib%2Fmemmove.c;fp=klib%2Fmemmove.c;h=b372945015061c75d5761b55a393f62ba7fa5be8;hp=0000000000000000000000000000000000000000;hb=5c0e560e481e2e97b793f7574e849a5882781df9;hpb=e57b692bd3a86ee40fd89416a06fd696f1ff3bf9

diff --git a/klib/memmove.c b/klib/memmove.c
new file mode 100644
index 0000000..b372945
--- /dev/null
+++ b/klib/memmove.c
@@ -0,0 +1,18 @@
+#include <string.h>
+
+void *memmove(void *s1, const void *s2, size_t n) {
+	char *dest = (char *)s1;
+	const char *src = (const char *)s2;
+	if (dest <= src) {
+		while (n--) {
+			*dest++ = *src++;
+		}
+	} else {
+		src += n;
+		dest += n;
+		while (n--) {
+			*--dest = *--src;
+		}
+	}
+	return s1;
+}