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/*
* Copyright (c) 2023 Marc Pervaz Boocha
*
* SPDX-License-Identifier: MIT
*/
#include <mem.h>
void *calt_memmove(void *dest, void const *src, size_t count) {
unsigned char *d = dest;
unsigned char const *s = src;
if (d > s) {
d += count;
s += count;
while (count-- > 0) {
*--d = *--s;
}
} else if (d < s) {
calt_memcpy(dest, src, count);
}
return dest;
}
void *calt_memmove_null(void *dest, void const *src, size_t count) {
return dest ? calt_memmove(dest, src, count) : NULL;
}
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