new libs

1 files changed, 7 insertions, 39 deletions

diff --git a/lib/memcpy.c b/lib/memcpy.c
index 020cc68..ec56537 100644
--- a/lib/memcpy.c
+++ b/lib/memcpy.c
@@ -1,42 +1,10 @@
-/**
-** @file	memcpy.c
-**
-** @author	Numerous CSCI-452 classes
-**
-** @brief	C implementations of common library functions
-*/
+#include <string.h>
 
-#ifndef MEMCPY_SRC_INC
-#define MEMCPY_SRC_INC
-
-#include <common.h>
-
-#include <lib.h>
-
-/**
-** memcpy(dst,src,len)
-**
-** Copy a block from one place to another
-**
-** May not correctly deal with overlapping buffers
-**
-** @param dst   Destination buffer
-** @param src   Source buffer
-** @param len   Buffer size (in bytes)
-*/
-void memcpy(void *dst, register const void *src, register uint32_t len)
+void *memcpy(void *restrict dest, const void *restrict src, size_t n)
 {
-	register uint8_t *dest = dst;
-	register const uint8_t *source = src;
-
-	/*
-	** We could speed this up by unrolling it and copying
-	** words at a time (instead of bytes).
-	*/
-
-	while (len--) {
-		*dest++ = *source++;
-	}
+	char *d = dest;
+	const char *s = src;
+	for (; n; n--)
+		*d++ = *s++;
+	return dest;
 }
-
-#endif