Implement mempcpy

2 files changed, 16 insertions, 1 deletions

diff --git a/libc/string/Makefile b/libc/string/Makefile
index 90a1b03a1..c7a4c128a 100644
--- a/libc/string/Makefile
+++ b/libc/string/Makefile
@@ -28,7 +28,7 @@ MSRC=string.c
 MOBJ=strlen.o strcat.o strcpy.o strchr.o strcmp.o strncat.o strncpy.o \
 	strncmp.o strrchr.o strdup.o strndup.o memcpy.o memccpy.o memset.o \
 	memmove.o memcmp.o memchr.o ffs.o strnlen.o strxfrm.o stpcpy.o \
-	stpncpy.o memrchr.o 
+	stpncpy.o memrchr.o mempcpy.o
 
 ifeq ($(HAS_LOCALE),true)
 	MOBJ += strcoll.o
diff --git a/libc/string/string.c b/libc/string/string.c
index 591f875f9..176ef895b 100644
--- a/libc/string/string.c
+++ b/libc/string/string.c
@@ -308,6 +308,21 @@ void *memcpy(void *dst, const void *src, size_t len)
 }
 #endif
 
+/********************** Function mempcpy ************************************/
+
+#ifdef L_mempcpy
+void *mempcpy(void *dst, const void *src, size_t len)
+{
+	register char *a = dst;
+	register const char *b = src;
+
+	while (len--)
+		*a++ = *b++;
+
+	return (void *) a;
+}
+#endif
+
 /********************** Function memccpy ************************************/
 
 #ifdef L_memccpy