#include "utils/HashCode.h"

#include "utils/Utility.h"

template<typename T>
static u32 hashNumber(T t) {
    constexpr u32 L = sizeof(T) / 4 + (sizeof(T) % 4 != 0);
    u32 parts[L];
    Core::memorySet(parts, 0, sizeof(parts));
    Core::memoryCopy(parts, &t, sizeof(T));
    u32 hash = 0;
    for(u32 i = 0; i < L; i++) {
        hash ^= parts[i];
    }
    return hash;
}

u32 Core::hashCode(char key) {
    return hashNumber(key);
}

u32 Core::hashCode(signed char key) {
    return hashNumber(key);
}

u32 Core::hashCode(signed short key) {
    return hashNumber(key);
}

u32 Core::hashCode(signed int key) {
    return hashNumber(key);
}

u32 Core::hashCode(signed long key) {
    return hashNumber(key);
}

u32 Core::hashCode(signed long long key) {
    return hashNumber(key);
}

u32 Core::hashCode(unsigned char key) {
    return hashNumber(key);
}

u32 Core::hashCode(unsigned short key) {
    return hashNumber(key);
}

u32 Core::hashCode(unsigned int key) {
    return hashNumber(key);
}

u32 Core::hashCode(unsigned long key) {
    return hashNumber(key);
}

u32 Core::hashCode(unsigned long long key) {
    return hashNumber(key);
}