deal.II version 9.7.0
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internal::SupportsOperation Namespace Reference

Classes

struct  detector
struct  detector< Default, void_t< Op< Args... > >, Op, Args... >
struct  nonesuch
struct  nonesuch_base

Typedefs

template<class...>
using void_t = void
template<class Default, template< class... > class Op, class... Args>
using detected_or = detector<Default, void, Op, Args...>
template<template< class... > class Op, class... Args>
using is_detected = typename detected_or<nonesuch, Op, Args...>::value_t
template<template< class... > class Op, class... Args>
using detected_t = typename detected_or<nonesuch, Op, Args...>::type
template<class Default, template< class... > class Op, class... Args>
using detected_or_t = typename detected_or<Default, Op, Args...>::type
template<class Expected, template< class... > class Op, class... Args>
using is_detected_exact = std::is_same<Expected, detected_t<Op, Args...>>
template<class To, template< class... > class Op, class... Args>
using is_detected_convertible

Detailed Description

A namespace used to declare the machinery for detecting whether a specific class supports an operation. This approach simulates C++20-style concepts with language standards before C++20.

Typedef Documentation

◆ void_t

template<class...>
using internal::SupportsOperation::void_t = void

Definition at line 44 of file template_constraints.h.

◆ detected_or

template<class Default, template< class... > class Op, class... Args>
using internal::SupportsOperation::detected_or = detector<Default, void, Op, Args...>

Definition at line 103 of file template_constraints.h.

◆ is_detected

template<template< class... > class Op, class... Args>
using internal::SupportsOperation::is_detected = typename detected_or<nonesuch, Op, Args...>::value_t

Definition at line 106 of file template_constraints.h.

◆ detected_t

template<template< class... > class Op, class... Args>
using internal::SupportsOperation::detected_t = typename detected_or<nonesuch, Op, Args...>::type

Definition at line 109 of file template_constraints.h.

◆ detected_or_t

template<class Default, template< class... > class Op, class... Args>
using internal::SupportsOperation::detected_or_t = typename detected_or<Default, Op, Args...>::type

Definition at line 112 of file template_constraints.h.

◆ is_detected_exact

template<class Expected, template< class... > class Op, class... Args>
using internal::SupportsOperation::is_detected_exact = std::is_same<Expected, detected_t<Op, Args...>>

Definition at line 115 of file template_constraints.h.

◆ is_detected_convertible

template<class To, template< class... > class Op, class... Args>
using internal::SupportsOperation::is_detected_convertible
Initial value:
std::is_convertible<detected_t<Op, Args...>, To>
internal::SupportsOperation::detected_t
typename detected_or< nonesuch, Op, Args... >::type detected_t
Definition template_constraints.h:109

Definition at line 118 of file template_constraints.h.