Experimental library header <experimental/ranges/utility>
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< cpp | header | experimental
This header is part of the ranges library.
Utility components
| Defined in namespace
std::experimental::ranges | |
| swaps the value of two objects (customization point object) | |
| replaces the argument with a new value and returns its previous value (function template) | |
Tag concepts
| Defined in namespace
std::experimental::ranges | |
| specifies that a type is a tag specifier (concept) | |
| specifies that a type represents a tag specifier and its element type (concept) | |
Tagged pairs
| Defined in namespace
std::experimental::ranges | |
| augument a tuple-like type with named accessors (class template) | |
| alias template for a tagged std::pair (alias template) | |
convenience function for creating a tagged_pair (function template) | |
Synopsis
namespace std { namespace experimental { namespace ranges { inline namespace v1 { namespace { constexpr /* unspecified */ swap = /* unspecified */; } template<MoveConstructible T, class U = T> requires Assignable<T&, U> constexpr T exchange(T& obj, U&& new_val) noexcept(/* see definition */); template <class T> concept bool TagSpecifier = /* see definition */; template <class F> concept bool TaggedType = /* see definition */; template <class Base, TagSpecifier... Tags> requires sizeof...(Tags) <= std::tuple_size<Base>::value struct tagged; template <TaggedType T1, TaggedType T2> using tagged_pair = /* see definition */; template <TagSpecifier Tag1, TagSpecifier Tag2, class T1, class T2> constexpr /* see definition */ make_tagged_pair(T1&& x, T2&& y); }}}} namespace std { template <class Base, class... Tags> struct tuple_size<experimental::ranges::tagged<Base, Tags...>>; template <size_t N, class Base, class... Tags> struct tuple_element<N, experimental::ranges::tagged<Base, Tags...>>; }