X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fstring%2Fwmemmove.c;h=964c9032991ed4620b381cb9dcb31eb789ac19a5;hb=baaf257f05b96816c24951e7b6721d72922949e5;hp=e406f3d5c8dfc2af79b992c9f1fa6cfc80c12ec6;hpb=571744447c23f91feb6439948f3a619aca850dfb;p=musl

diff --git a/src/string/wmemmove.c b/src/string/wmemmove.c
index e406f3d5..964c9032 100644
--- a/src/string/wmemmove.c
+++ b/src/string/wmemmove.c
@@ -1,9 +1,11 @@
 #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 (d == s) return d;
+	if ((uintptr_t)d-(uintptr_t)s < n * sizeof *d)
 		while (n--) d[n] = s[n];
 	else
 		while (n--) *d++ = *s++;