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- #ifndef CORE_UTILITY_H
- #define CORE_UTILITY_H
- #include <stdlib.h>
- #define IntSize(t) static_cast<int>(sizeof(t))
- namespace Core {
- namespace Internal {
- template<typename T>
- struct RemoveReferenceBase {
- typedef T t;
- };
- template<typename T>
- struct RemoveReferenceBase<T&> {
- typedef T t;
- };
- template<typename T>
- struct RemoveReferenceBase<T&&> {
- typedef T t;
- };
- template<typename A, typename B>
- struct IsSameBase {
- static constexpr bool value = false;
- };
- template<typename T>
- struct IsSameBase<T, T> {
- static constexpr bool value = true;
- };
- }
- template<typename T>
- using RemoveReference = Internal::RemoveReferenceBase<T>::t;
- template<typename T, typename U>
- constexpr bool IsSame = Internal::IsSameBase<T, U>::value;
- template<typename T>
- constexpr RemoveReference<T>&& move(T&& t) {
- return static_cast<RemoveReference<T>&&>(t);
- }
- template<typename T>
- constexpr T&& forward(RemoveReference<T>& t) {
- return static_cast<T&&>(t);
- }
- template<typename T>
- constexpr T&& forward(RemoveReference<T>&& t) {
- return static_cast<T&&>(t);
- }
- template<typename T>
- void swap(T& a, T& b) {
- T tmp = Core::move(a);
- a = Core::move(b);
- b = Core::move(tmp);
- }
- template<typename T>
- int popCount(const T& t) {
- static constexpr int map[16] = {0, 1, 1, 2, 1, 2, 2, 3,
- 1, 2, 2, 3, 2, 3, 3, 4};
- int sum = 0;
- for(int i = 0; i < static_cast<int>(sizeof(T) * 8); i += 4) {
- sum += map[(t >> i) & 0xF];
- }
- return sum;
- }
- using ExitHandler = void (*)(int, void*);
- void exitWithHandler(int value);
- void setExitHandler(ExitHandler eh, void*);
- }
- void* operator new(size_t bytes) noexcept;
- void* operator new[](size_t bytes) noexcept;
- void operator delete(void* p) noexcept;
- void operator delete[](void* p) noexcept;
- void operator delete(void* p, size_t bytes) noexcept;
- void operator delete[](void* p, size_t bytes) noexcept;
- void* operator new(size_t bytes, void* p) noexcept;
- // void* operator new[](size_t bytes, void* p) noexcept;
- #endif
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