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fix undefined pointer comparison in memmove
[musl]
/
src
/
string
/
memmove.c
diff --git
a/src/string/memmove.c
b/src/string/memmove.c
index
27f670e
..
f225bb3
100644
(file)
--- a/
src/string/memmove.c
+++ b/
src/string/memmove.c
@@
-10,7
+10,7
@@
void *memmove(void *dest, const void *src, size_t n)
const char *s = src;
if (d==s) return d;
const char *s = src;
if (d==s) return d;
- if (
s+n <= d || d+n <= s
) return memcpy(d, s, n);
+ if (
(uintptr_t)s-(uintptr_t)d-n <= -2*n
) return memcpy(d, s, n);
if (d<s) {
if ((uintptr_t)s % WS == (uintptr_t)d % WS) {
if (d<s) {
if ((uintptr_t)s % WS == (uintptr_t)d % WS) {