cal::valid_call< T > Struct Template Reference

Returns whether the function call is valid. When the template parameter is equal to F(T...), it will return true if the function object F can be called with parameters of type T.... If variadic templates are not supported, a maximum of 5 arguments are supported. More...

#include <utility.hpp>

Inherits cal::_priv::valid_call< T >.

Public Types
typedef integral_constant	type
	Type of the integral_constant.
typedef T	value_type
	Type of the value.

Public Member Functions
constexpr	operator value_type () const
	Converts the integral constant type into its constant value.

Static Public Attributes
static const bool	value
	Whether the function object can be called with the given argument types.

Detailed Description

template<class T>
struct cal::valid_call< T >

Returns whether the function call is valid. When the template parameter is equal to F(T...), it will return true if the function object F can be called with parameters of type T.... If variadic templates are not supported, a maximum of 5 arguments are supported.

Returns whether a function call is valid.

When instantiated with a template argument of the form F(T...), its value is true if the function object F can be called with arguments of type T... and false otherwise.