forked from OctaForge/libostd
73 lines
1.8 KiB
C++
73 lines
1.8 KiB
C++
/* Utilities for OctaSTD.
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*
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* This file is part of OctaSTD. See COPYING.md for futher information.
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*/
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#ifndef OCTA_UTILITY_H
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#define OCTA_UTILITY_H
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#include <stddef.h>
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#include "octa/traits.h"
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/* must be in std namespace otherwise the compiler won't know about it */
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namespace std {
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template<typename T>
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class initializer_list {
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const T *p_buf;
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size_t p_len;
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initializer_list(const T *v, size_t n): p_buf(v), p_len(n) {}
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public:
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struct type {
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typedef T value;
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typedef T &reference;
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typedef const T &const_reference;
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typedef T *pointer;
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typedef const T *const_pointer;
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typedef size_t size;
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typedef ptrdiff_t difference;
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};
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initializer_list(): p_buf(nullptr), p_len(0) {}
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size_t length() const { return p_len; }
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const T *get() const { return p_buf; }
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};
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}
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namespace octa {
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template<typename T> using InitializerList = std::initializer_list<T>;
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template<typename T> void swap(T &a, T &b) {
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T c(move(a));
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a = move(b);
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b = move(c);
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}
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template<typename T, size_t N> void swap(T (&a)[N], T (&b)[N]) {
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for (size_t i = 0; i < N; ++i) {
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swap(a[i], b[i]);
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}
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}
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template<typename T>
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static inline constexpr typename RemoveReference<T>::type &&
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move(T &&v) noexcept {
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return static_cast<typename RemoveReference<T>::type &&>(v);
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}
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template<typename T>
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static inline constexpr T &&
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forward(typename RemoveReference<T>::type &v) noexcept {
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return static_cast<T &&>(v);
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}
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template<typename T>
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static inline constexpr T &&
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forward(typename RemoveReference<T>::type &&v) noexcept {
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return static_cast<T &&>(v);
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}
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}
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#endif |