53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
#pragma once
|
|
|
|
#include <type_traits>
|
|
#include <utility>
|
|
|
|
namespace nall {
|
|
using std::add_const;
|
|
using std::decay;
|
|
using std::declval;
|
|
using std::false_type;
|
|
using std::forward;
|
|
using std::initializer_list;
|
|
using std::is_array;
|
|
using std::is_base_of;
|
|
using std::is_function;
|
|
using std::is_integral;
|
|
using std::is_same;
|
|
using std::move;
|
|
using std::nullptr_t;
|
|
using std::remove_extent;
|
|
using std::remove_reference;
|
|
using std::swap;
|
|
using std::true_type;
|
|
}
|
|
|
|
namespace nall {
|
|
template<bool C> struct expression { static constexpr bool value = C; };
|
|
}
|
|
|
|
namespace nall {
|
|
namespace traits {
|
|
enum class enable_type {};
|
|
enum class disable_type {};
|
|
|
|
template<bool C, typename T = void> struct enable_if { using type = T; };
|
|
template<typename T> struct enable_if<false, T> {};
|
|
|
|
template<bool C, typename T = void> struct disable_if { using type = T; };
|
|
template<typename T> struct disable_if<true, T> {};
|
|
}
|
|
|
|
template<typename C, typename T = void> using enable_if = typename traits::enable_if<C::value, T>::type;
|
|
template<typename C, typename T = void> using disable_if = typename traits::disable_if<C::value, T>::type;
|
|
}
|
|
|
|
namespace nall {
|
|
namespace traits {
|
|
template<bool C, typename T, typename F> struct type_if { using type = T; };
|
|
template<typename T, typename F> struct type_if<false, T, F> { using type = F; };
|
|
}
|
|
|
|
template<typename C, typename T, typename F> using type_if = typename traits::type_if<C::value, T, F>::type;
|
|
}
|