#include <global.h>

const u8* strchr(const u8* str, s32 ch) {
    u8 c = ch;
    while (*str != c) {
        if (*str == 0) {
            return NULL;
        }
        str++;
    }
    return str;
}

size_t strlen(const u8* str) {
    const u8* ptr = str;
    while (*ptr) {
        ptr++;
    }
    return ptr - str;
}

void* memcpy(void* dst, const void* src, size_t size) {
    u8* _dst = dst;
    const u8* _src = src;
    while (size > 0) {
        *_dst++ = *_src++;
        size--;
    }
    return dst;
}