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remove dependency of memmove on memcpy direction
[musl]
/
src
/
string
/
memmove.c
diff --git
a/src/string/memmove.c
b/src/string/memmove.c
index
22bb4b3
..
9153a64
100644
(file)
--- a/
src/string/memmove.c
+++ b/
src/string/memmove.c
@@
-5,10
+5,9
@@
void *memmove(void *dest, const void *src, size_t n)
char *d = dest;
const char *s = src;
if (d==s) return d;
char *d = dest;
const char *s = src;
if (d==s) return d;
- if ((size_t)(d-s) < n)
{
+ if ((size_t)(d-s) < n)
while (n--) d[n] = s[n];
while (n--) d[n] = s[n];
- return dest;
- }
- /* Assumes memcpy is overlap-safe when dest < src */
- return memcpy(d, s, n);
+ else
+ while (n--) *d++ = *s++;
+ return dest;
}
}