src/os/string.c


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#include "libultra_internal.h"
#include <string.h>

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;
}

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

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