Staging
v0.8.1
v0.8.1
Revision cf60858b55a1ce8d99daa301f7aad9a7ffeb0bb7 authored by Martin v. Löwis on 28 May 2011, 11:56:22 UTC, committed by Martin v. Löwis on 28 May 2011, 11:56:22 UTC
1 parent 2d253dd
memmove.c
/* A perhaps slow but I hope correct implementation of memmove */
extern char *memcpy(char *, char *, int);
char *
memmove(char *dst, char *src, int n)
{
char *realdst = dst;
if (n <= 0)
return dst;
if (src >= dst+n || dst >= src+n)
return memcpy(dst, src, n);
if (src > dst) {
while (--n >= 0)
*dst++ = *src++;
}
else if (src < dst) {
src += n;
dst += n;
while (--n >= 0)
*--dst = *--src;
}
return realdst;
}
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