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#include "string.h"
#include "mem/memory.h"
void*
memset(void *dest, int c, size_t n)
{
char *destc = (char*)dest;
for(size_t i = 0; i < n; i++)
destc[i] = c;
return dest;
}
void*
memcpy(void *dest, const void *src, size_t n)
{
char *destc = (char*)dest;
const char *srcc = (const char*)src;
for(size_t i = 0; i < n; i++)
destc[i] = srcc[i];
return dest;
}
void*
memmove(void *dest, const void *src, size_t n)
{
char *destc = (char*)dest;
const char *srcc = (const char*)src;
if(destc + n < srcc) return memcpy(dest, src, n);
char buffer[n];
memcpy(buffer, src, n);
return memcpy(destc, buffer, n);
}
int
memcmp(const void *a, const void *b, size_t n)
{
const char *ac = (const char*)a;
const char *bc = (const char*)b;
for(size_t i = 0; i < n; i++) {
if(ac[i] != bc[i]) return ac[i] - bc[i];
}
return 0;
}
char*
strdup(const char *s)
{
size_t slen = strlen(s);
char *ret = mem_alloc(slen);
memcpy(ret, s, slen);
return ret;
}
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