toolbox::functional::detail Namespace Reference

Classes
struct	has_size
	检查类型是否有size()成员函数的类型特征 / Type trait to check if type has size() member function More...
struct	has_size< T, std::void_t< decltype(std::declval< T >().size())> >
struct	is_optional
	检查T是否为std::optional的类型特征 / Type trait to check if T is a std::optional More...
struct	is_optional< std::optional< T > >
struct	MemoizeState
	记忆化的内部状态 / Internal state for memoization More...
struct	overloaded
	用于创建重载集的辅助类 / Helper class for creating overload sets More...

Functions
template<class... Fs>
	overloaded (Fs...) -> overloaded< Fs... >
template<typename... Containers>
auto	get_min_size (const Containers &... containers) -> size_t
	获取多个容器中的最小大小的辅助函数 / Helper function to get minimum size from multiple containers
template<typename Tuple , std::size_t... Is>
void	increment_iterators (Tuple &iter_tuple, std::index_sequence< Is... >)
	增加元组中所有迭代器的辅助函数 / Helper function to increment all iterators in a tuple
template<typename Tuple , std::size_t... Is>
auto	dereference_iterators_as_tuple (Tuple &iter_tuple, std::index_sequence< Is... >)
	解引用迭代器并创建引用元组的辅助函数 / Helper function to dereference iterators and create tuple of references

Variables
template<typename T >
constexpr bool	is_optional_v = is_optional<std::decay_t<T>>::value

Function Documentation

dereference_iterators_as_tuple()

template<typename Tuple , std::size_t... Is>

auto toolbox::functional::detail::dereference_iterators_as_tuple	(	Tuple &	iter_tuple,
		std::index_sequence< Is... >
	)

解引用迭代器并创建引用元组的辅助函数 / Helper function to dereference iterators and create tuple of references

auto iters = std::make_tuple(v.begin(), l.begin());
auto refs = dereference_iterators_as_tuple(iters,
std::index_sequence_for<decltype(v),decltype(l)>{});

get_min_size()

template<typename... Containers>

auto toolbox::functional::detail::get_min_size

(

const Containers &...

containers

)

-> size_t

获取多个容器中的最小大小的辅助函数 / Helper function to get minimum size from multiple containers

Template Parameters

Containers

容器类型 / Container types

Returns

所有容器中的最小大小,如果没有容器则返回0 / Minimum size among all containers, or 0 if no containers

std::vector<int> v1{1,2,3};
std::list<int> l1{1,2};
auto min_size = get_min_size(v1, l1); // 返回2 / Returns 2

increment_iterators()

template<typename Tuple , std::size_t... Is>

void toolbox::functional::detail::increment_iterators	(	Tuple &	iter_tuple,
		std::index_sequence< Is... >
	)

增加元组中所有迭代器的辅助函数 / Helper function to increment all iterators in a tuple

auto iters = std::make_tuple(v.begin(), l.begin());
increment_iterators(iters,
std::index_sequence_for<decltype(v),decltype(l)>{});

overloaded()

template<class... Fs>

toolbox::functional::detail::overloaded

(

Fs...

)

-> overloaded< Fs... >

Variable Documentation

is_optional_v

template<typename T >

constexpr bool toolbox::functional::detail::is_optional_v = is_optional<std::decay_t<T>>::value

inlineconstexpr