old-gaming-core/utils/Utility.cpp

#include "utils/Utility.h"

int Core::popcount(int i) {
    int count = 0;
    static constexpr int map[16] = {
        0, // 0000
        1, // 0001
        1, // 0010
        2, // 0011
        1, // 0100
        2, // 0101
        2, // 0110
        3, // 0111
        1, // 1000
        2, // 1001
        2, // 1010
        3, // 1011
        2, // 1100
        3, // 1101
        3, // 1110
        4, // 1111
    };
    for(int k = 0; k < static_cast<int>(sizeof(int) * 8); k += 4) {
        count += map[(i >> k) & 0xF];
    }
    return count;
}

void* operator new(size_t bytes) noexcept {
    return malloc(bytes);
}

void* operator new[](size_t bytes) noexcept {
    return malloc(bytes);
}

void operator delete(void* p) noexcept {
    free(p);
}

void operator delete[](void* p) noexcept {
    free(p);
}

void operator delete(void* p, size_t bytes) noexcept {
    (void)bytes;
    free(p);
}

void operator delete[](void* p, size_t bytes) noexcept {
    (void)bytes;
    free(p);
}

void* operator new(size_t bytes, void* p) noexcept {
    (void)bytes;
    return p;
}

void* operator new[](size_t bytes, void* p) noexcept {
    (void)bytes;
    return p;
}