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/* See LICENSE file for copyright and license details. */
#include "libsimple.h"
#ifndef TEST
void *
libsimple_memelemscan_inv(const void *hay_, size_t hayn, const void *sub_, size_t subn) /* TODO test, man */
{
switch (subn) {
case 0:
return (void *)hay_;
case 1:
return libsimple_memscan_inv(hay_, *(char *)sub_, hayn);
case 2:
{
uint16_t *hay = (void *)hay_;
uint16_t sub = *(uint16_t *)sub_;
for (; hayn-- && *hay == sub; hay++);
return hay;
}
case 4:
{
uint32_t *hay = (void *)hay_;
uint32_t sub = *(uint32_t *)sub_;
for (; hayn-- && *hay == sub; hay++);
return hay;
}
case 8:
{
uint64_t *hay = (void *)hay_;
uint64_t sub = *(uint64_t *)sub_;
for (; hayn-- && *hay == sub; hay++);
return hay;
}
default:
{
char *hay = (void *)hay_;
const char *sub = sub_;
size_t i;
for (; hayn--; hay += subn) {
for (i = 0; i < subn; i++)
if (hay[i] != sub[i])
return hay;
}
return hay;
}
}
}
#else
#include "test.h"
int
main(void)
{
return 0;
}
#endif
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