error_set_alternative< I, ES > Class Template Reference

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

#include <sumty/error_set.hpp>

Inheritance diagram for error_set_alternative< I, ES >:

Collaboration diagram for error_set_alternative< I, ES >:

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

Detailed Description

template<size_t I, typename ES>
class sumty::error_set_alternative< I, ES >

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

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

Example

assert(std::is_same_v<
    typename error_set_alternative<1, variant<error1, error2, error3>>::type,
    error2
>);

Template Parameters

I	The index of the error_set alternative
ES	The error_set type containing the alternative

Friends And Related Function Documentation

error_set_alternative_t

using error_set_alternative_t = typename error_set_alternative<I, ES>::type

related

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

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

Example

assert(std::is_same_v<
    error_set_alternative_t<1, variant<error1, error2, error3>>,
    error2
>);

Template Parameters

I	The index of the error_set alternative
ES	The error_set type containing the alternative

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

• sumty/error_set.hpp