A lightweight non-owning reference to a callable. More...

Classes
class	function_ref< F >
	A lightweight non-owning reference to a callable. More...

class	function_ref< R(Args...)>
	Specialization for function types. More...

Functions
template<typename R , typename... Args>
constexpr void	swap (function_ref< R(Args...)> &lhs, function_ref< R(Args...)> &rhs) noexcept
	Swaps the referred callables of `lhs` and `rhs`.

template<typename R , typename... Args>
	function_ref (R(*)(Args...)) -> function_ref< R(Args...)>
	Deduce function_ref type from a function pointer.

Detailed Description

A lightweight non-owning reference to a callable.

Classes