iox2::legacy::is_invocable_r< ReturnType, Callable, ArgTypes > Struct Template Reference

Verifies whether the passed Callable type is in fact invocable with the given arguments and the result of the invocation is convertible to ReturnType. More...

#include <type_traits.hpp>

Static Public Member Functions
template<typename C , typename... As>
static constexpr std::true_type	test (std::enable_if_t< std::is_convertible< typename iox2::legacy::invoke_result< C, As... >::type, ReturnType >::value > *) noexcept
template<typename C , typename... As>
static constexpr std::false_type	test (...) noexcept

Static Public Attributes
static constexpr bool	value { decltype(test<Callable, ArgTypes...>(nullptr))::value }

Detailed Description

template<typename ReturnType, typename Callable, typename... ArgTypes>
struct iox2::legacy::is_invocable_r< ReturnType, Callable, ArgTypes >

Verifies whether the passed Callable type is in fact invocable with the given arguments and the result of the invocation is convertible to ReturnType.

Note

This is an implementation of std::is_invokable_r (C++17).

Definition at line 89 of file type_traits.hpp.

Member Function Documentation

test() [1/2]

template<typename ReturnType , typename Callable , typename... ArgTypes>

template<typename C , typename... As>

static constexpr std::false_type iox2::legacy::is_invocable_r< ReturnType, Callable, ArgTypes >::test (   ... )

inlinestaticconstexprnoexcept

Definition at line 100 of file type_traits.hpp.

test() [2/2]

template<typename ReturnType , typename Callable , typename... ArgTypes>

template<typename C , typename... As>

static constexpr std::true_type iox2::legacy::is_invocable_r< ReturnType, Callable, ArgTypes >::test ( std::enable_if_t< std::is_convertible< typename iox2::legacy::invoke_result< C, As... >::type, ReturnType >::value > *  )

inlinestaticconstexprnoexcept

Definition at line 92 of file type_traits.hpp.

Member Data Documentation

value

template<typename ReturnType , typename Callable , typename... ArgTypes>

constexpr bool iox2::legacy::is_invocable_r< ReturnType, Callable, ArgTypes >::value { decltype(test<Callable, ArgTypes...>(nullptr))::value }

staticconstexpr

Definition at line 105 of file type_traits.hpp.

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The documentation for this struct was generated from the following file:

• iox2/legacy/type_traits.hpp