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rockOS/libc/string/memmove.c

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2022-07-18 09:59:04 +03:00
#include <string.h>
void* memmove (void* dstptr, const void* srcptr, size_t size) {
unsigned char* dst = (unsigned char*) dstptr;
const unsigned char* src = (const unsigned char*) srcptr;
if (dst < src) {
for (size_t i = 0; i < size; i++) {
dst[i] = src[i];
}
} else {
for (size_t i = size; i != 0; i--) {
dst[i-1] = src[i-1];
}
}
return dstptr;
}