From cd68333f867f982974806f36c756ccb98a6b2778 Mon Sep 17 00:00:00 2001
From: Lionel Debroux <lionel_debroux@yahoo.fr>
Date: Tue, 17 May 2022 16:39:51 +0200
Subject: [PATCH] Get rid of memcpy(), as __builtin_memcpy() is globally
 smaller - and faster anyway - in all current and foreseeable occurrences.

---
 lib/string.c | 10 ----------
 lib/string.h |  3 ++-
 2 files changed, 2 insertions(+), 11 deletions(-)

diff --git a/lib/string.c b/lib/string.c
index 4781312..257b6ce 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -43,16 +43,6 @@ int memcmp(const void *s1, const void *s2, size_t n)
     return 0;
 }
 
-void *memcpy(void *dest, const void *src, size_t n)
-{
-    char *d = (char *)dest, *s = (char *)src;
-
-    for (size_t i = 0; i < n; i++) {
-        d[i] = s[i];
-    }
-    return dest;
-}
-
 void *memmove(void *dest, const void *src, size_t n)
 {
     char *d = (char *)dest, *s = (char *)src;
diff --git a/lib/string.h b/lib/string.h
index b6e877a..b24e704 100644
--- a/lib/string.h
+++ b/lib/string.h
@@ -24,8 +24,9 @@ int memcmp(const void *s1, const void *s2, size_t n);
  * Copies n bytes from the memory area pointed to by src to the memory area
  * pointed to by dest and returns a pointer to dest. The memory areas must
  * not overlap.
+ * void *memcpy(void *dst, const void *src, size_t n);
  */
-void *memcpy(void *dst, const void *src, size_t n);
+#define memcpy(d, s, n) __builtin_memcpy((d), (s), (n))
 
 /**
  * Copies n bytes from the memory area pointed to by src to the memory area