fub::function_ref< Ret(Params...)> Class Template Reference

An efficient, type-erasing, non-owning reference to a callable. More...

#include <function_ref.hpp>

Public Member Functions
template<typename Callable , typename = std::enable_if_t<IsInvocable<Callable, Ret, Params...>::value>>
	function_ref (Callable &&callable, typename std::enable_if< !std::is_same< typename std::remove_reference< Callable >::type, function_ref >::value >::type *=nullptr)
Ret	operator() (Params... params) const

Static Private Member Functions
template<typename Callable >
static Ret	callback_fn (std::intptr_t callable, Params... params)

Private Attributes
Ret(*	callback )(std::intptr_t callable, Params... params)
std::intptr_t	callable

Detailed Description

template<typename Ret, typename... Params>
class fub::function_ref< Ret(Params...)>

An efficient, type-erasing, non-owning reference to a callable.

This is intended for use as the type of a function parameter that is not used after the function in question returns.

This class does not own the callable, so it is not in general safe to store a function_ref.

Constructor & Destructor Documentation

function_ref()

template<typename Ret , typename... Params>

template<typename Callable , typename = std::enable_if_t<IsInvocable<Callable, Ret, Params...>::value>>

fub::function_ref< Ret(Params...)>::function_ref ( Callable &&  callable, typename std::enable_if< !std::is_same< typename std::remove_reference< Callable >::type, function_ref< Ret(Params...)> >::value >::type *  = nullptr  )

inline

Member Function Documentation

callback_fn()

template<typename Ret , typename... Params>

template<typename Callable >

static Ret fub::function_ref< Ret(Params...)>::callback_fn ( std::intptr_t  callable, Params...  params  )

inlinestaticprivate

operator()()

template<typename Ret , typename... Params>

Ret fub::function_ref< Ret(Params...)>::operator() ( Params...  params ) const

inline

Member Data Documentation

callable

template<typename Ret , typename... Params>

std::intptr_t fub::function_ref< Ret(Params...)>::callable

private

callback

template<typename Ret , typename... Params>

Ret(* fub::function_ref< Ret(Params...)>::callback) (std::intptr_t callable, Params... params)

private

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

• function_ref.hpp