LeechCraft  0.6.70-13729-g7046a9d2a7
Modular cross-platform feature rich live environment.
detector.h
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29 
30 #pragma once
31 
32 #include <type_traits>
33 
34 namespace LC
35 {
36 namespace Util
37 {
38  namespace detail
39  {
40  template<typename Default, typename Placeholder, template<typename...> class Op, typename... Args>
41  struct IsDetected
42  {
43  using value_t = std::false_type;
44  using type = Default;
45  };
46 
47  template<typename Default, template<typename...> class Op, typename... Args>
48  struct IsDetected<Default, std::void_t<Op<Args...>>, Op, Args...>
49  {
50  using value_t = std::true_type;
51  using type = Op<Args...>;
52  };
53  }
54 
55  template<template<typename...> class Op, typename... Args>
56  constexpr bool IsDetected_v = detail::IsDetected<void, void, Op, Args...>::value_t::value;
57 
58  template<typename Type, template<typename...> class Op, typename... Args>
59  using IsDetected_t = typename detail::IsDetected<Type, void, Op, Args...>::type;
60 }
61 }
typename detail::IsDetected< Type, void, Op, Args... >::type IsDetected_t
Definition: detector.h:59
STL namespace.
constexpr bool IsDetected_v
Definition: detector.h:56
Type
Describes the various types of XDG .desktop files.
Definition: itemtypes.h:48
std::false_type value_t
Definition: detector.h:43
Definition: constants.h:35