X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=sidebyside;f=src%2Fstring%2Fwmemmove.c;h=964c9032991ed4620b381cb9dcb31eb789ac19a5;hb=ff5b8ad386d900e4a4c11ecdfb52dceadd9d0ee9;hp=89041c32ae28ad29847ed720a9b75944e85b7c80;hpb=bac03cdde1137c16b4c194e137310e2748661dcc;p=musl

diff --git a/src/string/wmemmove.c b/src/string/wmemmove.c
index 89041c32..964c9032 100644
--- a/src/string/wmemmove.c
+++ b/src/string/wmemmove.c
@@ -1,11 +1,13 @@
-#include <string.h>
 #include <wchar.h>
+#include <stdint.h>
 
 wchar_t *wmemmove(wchar_t *d, const wchar_t *s, size_t n)
 {
-	if ((size_t)(d-s) < n)
+	wchar_t *d0 = d;
+	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++;
-	return d;
+	return d0;
 }