iox::cxx::is_invocable_r

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 <iceoryx_hoofs/cxx/type_traits.hpp>

Public Functions

	Name
template <typename C ,typename... As> constexpr std::true_type	test(std::enable_if_t< std::is_convertible< typename cxx::invoke_result< C, As... >::type, ReturnType >::value > * )
template <typename C ,typename... As> constexpr std::false_type	test(... )

Public Attributes

	Name
constexpr bool	value

Detailed Description

template <typename ReturnType ,
typename Callable ,
typename... ArgTypes>
struct iox::cxx::is_invocable_r;

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).

Public Functions Documentation

function test

template <typename C ,
typename... As>
static inline constexpr std::true_type test(
    std::enable_if_t< std::is_convertible< typename cxx::invoke_result< C, As... >::type, ReturnType >::value > * 
)

function test

template <typename C ,
typename... As>
static inline constexpr std::false_type test(
    ... 
)

Public Attributes Documentation

variable value

static constexpr bool value = decltype(test<Callable, ArgTypes...>(nullptr))::value;

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Updated on 2 April 2022 at 16:37:47 CEST