21 lines
351 B
C
21 lines
351 B
C
|
#include <string.h>
|
||
|
|
|
||
|
|
void* memmove(void* destp, const void* srcp, size_t n)
|
||
|
|
{
|
||
|
|
unsigned char* dest = (unsigned char*)destp;
|
||
|
|
const unsigned char* src = (const unsigned char*)srcp;
|
||
|
|
|
||
|
|
if (dest < src)
|
||
|
|
{
|
||
|
|
for (size_t i = 0; i < n; i++)
|
||
|
|
dest[i] = src[i];
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
for (size_t i = 1; i <= n; i++)
|
||
|
|
dest[n - i] = src[n - i];
|
||
|
|
}
|
||
|
|
|
||
|
|
return destp;
|
||
|
|
}
|