eve::or_< C, V > Struct Template Reference

Conditional/Alternative wrapper. More...

#include <eve/conditional.hpp>

Detailed Description

template<typename C, typename V>
struct eve::or_< C, V >

Required header: #include <eve/conditional.hpp>

eve::or_ wraps any eve::conditional_expr with an alternative value to be used whenever the conditional value evaluates to false.

Template Parameters

C	Type of the wrapped eve::conditional_expr value
V	Type of the wrapped alternative eve::value

Public Types
using	alternative_type = V
	The type of the alternative value.
using	conditional_type = C
	The type of the wrapped conditional expression.

Public Member Functions
constexpr	or_ (C const &c, V const &v)
	Wraps a eve::conditional_expr with an alternative value.
constexpr C	base () const
	Returns the underlying, alternative-less conditional expression.
template<typename T>
constexpr auto	rebase (T v) const
	Creates a eve::conditional_expr with a new alternative value.

Public Attributes
V	alternative
	Value to use as an alternative.

Friends
template<typename Ch, typename Ct>
auto &	operator<< (std::basic_ostream< Ch, Ct > &os, or_ const &c)
	Inserts a conditional expression with alternative into a output stream.