mirror of https://github.com/bsnes-emu/bsnes.git
54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
#ifndef NALL_TRAITS_HPP
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#define NALL_TRAITS_HPP
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#include <type_traits>
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#include <utility>
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namespace nall {
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using std::nullptr_t;
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using std::forward;
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using std::move;
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using std::decay;
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using std::declval;
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using true_type = std::true_type;
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using false_type = std::false_type;
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template<typename T, typename U> using is_same = std::is_same<T, U>;
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template<typename T, typename U> using is_base_of = std::is_base_of<T, U>;
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template<typename T> using is_array = std::is_array<T>;
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template<typename T> using is_function = std::is_function<T>;
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template<typename T> using is_integral = std::is_integral<T>;
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}
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namespace nall {
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template<bool C> struct expression { static constexpr bool value = C; };
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}
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namespace nall {
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namespace traits {
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enum class enable_type {};
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enum class disable_type {};
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template<bool C, typename T = void> struct enable_if { using type = T; };
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template<typename T> struct enable_if<false, T> {};
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template<bool C, typename T = void> struct disable_if { using type = T; };
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template<typename T> struct disable_if<true, T> {};
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}
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template<typename C, typename T = void> using enable_if = typename traits::enable_if<C::value, T>::type;
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template<typename C, typename T = void> using disable_if = typename traits::disable_if<C::value, T>::type;
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}
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namespace nall {
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namespace traits {
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template<bool C, typename T, typename F> struct type_if { using type = T; };
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template<typename T, typename F> struct type_if<false, T, F> { using type = F; };
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}
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template<typename C, typename T, typename F> using type_if = typename traits::type_if<C::value, T, F>::type;
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}
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#endif
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