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Message-ID: <CABXCG3=+JAkJHvNamybrPREwHfpzM2QvLuvOm-dahmzsbEUd8A@mail.gmail.com>
Date: Sun, 25 Jun 2017 13:44:10 -0400
From: Andrew Salmon <andrew.salmon@...e.edu>
To: musl@...ts.openwall.com
Subject: wmemcpy: call memcpy
Currently, wmemcpy is implemented as a loop, which the compiler
aggressively optimizes. From a binary perspective it's probably cleaner to
implement it as a call to memcpy.
diff --git a/src/string/wmemcpy.c b/src/string/wmemcpy.c
index 52e6e6e..272f37a 100644
--- a/src/string/wmemcpy.c
+++ b/src/string/wmemcpy.c
@@ -1,8 +1,7 @@
+#include <string.h>
#include <wchar.h>
wchar_t *wmemcpy(wchar_t *restrict d, const wchar_t *restrict s, size_t n)
{
- wchar_t *a = d;
- while (n--) *d++ = *s++;
- return a;
+ return memcpy(d, s, n * sizeof(wchar_t));
}
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