From: Rich Felker <dalias@aerifal.cx>
Date: Sun, 23 Sep 2018 06:48:25 +0000 (-0400)
Subject: fix undefined pointer comparison in wmemmove
X-Git-Tag: v1.1.21~72
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=82c41e92320c3f84bd6d24e21c5350a06e2fc831;p=oweals%2Fmusl.git

fix undefined pointer comparison in wmemmove
---

diff --git a/src/string/wmemmove.c b/src/string/wmemmove.c
index e406f3d5..d58cebac 100644
--- a/src/string/wmemmove.c
+++ b/src/string/wmemmove.c
@@ -1,9 +1,10 @@
 #include <wchar.h>
+#include <stdint.h>
 
 wchar_t *wmemmove(wchar_t *d, const wchar_t *s, size_t n)
 {
 	wchar_t *d0 = d;
-	if ((size_t)(d-s) < n)
+	if ((uintptr_t)d-(uintptr_t)s < n * sizeof *d)
 		while (n--) d[n] = s[n];
 	else
 		while (n--) *d++ = *s++;