Tag-Invoke Customization

Detailed Description

Tag-invoke customization point objects (CPO), concepts, and helpers.

Files
file	tag-invoke.hpp
	tag_invoke customization point and concepts.

Concepts
concept	guanaqo::tag_invocable
concept	guanaqo::nothrow_tag_invocable

Typedefs
template<typename Tag, typename... Args>
using	guanaqo::tag_invoke_result
template<typename Tag, typename... Args>
using	guanaqo::tag_invoke_result_t
template<auto & Tag>
using	guanaqo::tag_t = std::decay_t<decltype(Tag)>

Variables
constexpr tag_invoke_fn_ns::tag_invoke_fn	guanaqo::tag_invoke_ns::guanaqo_tag_invoke = {}
	The tag_invoke customization point object.
template<typename Tag, typename... Args>
constexpr bool	guanaqo::is_tag_invocable_v = tag_invocable<Tag, Args...>
template<typename Tag, typename... Args>
constexpr bool	guanaqo::is_nothrow_tag_invocable_v

Typedef Documentation

tag_invoke_result

template<typename Tag, typename... Args>

using guanaqo::tag_invoke_result

#include <guanaqo/tag-invoke.hpp>

Initial value:

 
std::invoke_result<decltype(::guanaqo::guanaqo_tag_invoke), Tag, Args...>

Definition at line 74 of file tag-invoke.hpp.

tag_invoke_result_t

template<typename Tag, typename... Args>

using guanaqo::tag_invoke_result_t

#include <guanaqo/tag-invoke.hpp>

Initial value:

 
std::invoke_result_t<decltype(::guanaqo::guanaqo_tag_invoke), Tag, Args...>

Definition at line 78 of file tag-invoke.hpp.

tag_t

template<auto & Tag>

using guanaqo::tag_t = std::decay_t<decltype(Tag)>

#include <guanaqo/tag-invoke.hpp>

Definition at line 82 of file tag-invoke.hpp.

Variable Documentation

guanaqo_tag_invoke

tag_invoke_fn_ns::tag_invoke_fn guanaqo::tag_invoke_ns::guanaqo_tag_invoke = {}

inlineconstexpr

#include <guanaqo/tag-invoke.hpp>

The tag_invoke customization point object.

Definition at line 46 of file tag-invoke.hpp.

is_tag_invocable_v

template<typename Tag, typename... Args>

bool guanaqo::is_tag_invocable_v = tag_invocable<Tag, Args...>

inlineconstexpr

#include <guanaqo/tag-invoke.hpp>

Definition at line 67 of file tag-invoke.hpp.

is_nothrow_tag_invocable_v

template<typename Tag, typename... Args>

bool guanaqo::is_nothrow_tag_invocable_v

inlineconstexpr

#include <guanaqo/tag-invoke.hpp>

Initial value:

                                             =
nothrow_tag_invocable<Tag, Args...>

Definition at line 70 of file tag-invoke.hpp.