variant_alternative< I, T > Class Template Reference

Utility to get the type of a variant alternative with some index. More...

#include <sumty/variant.hpp>

Related Functions
(Note that these are not member functions.)
template<size_t I, typename T >
using	variant_alternative_t = typename variant_alternative< I, T >::type
	Utility to get the type of a variant alternative with some index. More...

Detailed Description

template<size_t I, typename T>
class sumty::variant_alternative< I, T >

Utility to get the type of a variant alternative with some index.

variant_alternative provides the type of an alternative with the index I in the member type, type.

Example

assert(std::is_same_v<
    typename variant_alternative<1, variant<bool, int, void>>::type,
    int
>);

Template Parameters

I	The index of the variant alternative
T	The variant type containing the alternative

Friends And Related Function Documentation

variant_alternative_t

using variant_alternative_t = typename variant_alternative<I, T>::type

related

Utility to get the type of a variant alternative with some index.

variant_alternative_t is the type of an alternative with the index I.

Example

assert(std::is_same_v<
        variant_alternative_t<1, variant<bool, int, void>>, int>);

Template Parameters

I	The index of the @variant alternative
T	The variant type containing the alternative

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

• sumty/variant.hpp