std::basic_common_reference<tuple-like>

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Defined in header`<tuple>`
template< tuple-like TTuple, tuple-like UTuple, template<class>class TQual,template<class>class UQual> requires/* see below */ struct basic_common_reference<TTuple, UTuple, TQual, UQual>;		(since C++23)

The common reference type of twotuple-like types is astd::tuple consists of the common reference types of all corresponding element type pairs of both types, where the cv and reference qualifiers on the tuple-like types are applied to their element types.

Given

TTypes as the pack formed by the sequence ofstd::tuple_element_t<i, TTuple> for every integeri in[0, std::tuple_size_v<TTuple>), and
UTypes as the pack formed by the sequence ofstd::tuple_element_t<i, UTuple> for every integeri in[0, std::tuple_size_v<UTuple>),

the following constraints need to be satisfied:

TTuple orUTuple is astd::tuple specialization.
std::is_same_v<TTuple,std::decay_t<TTuple>> istrue.
std::is_same_v<UTuple,std::decay_t<UTuple>> istrue.
std::tuple_size_v<TTuple> equalsstd::tuple_size_v<UTuple> (TTuple andUTuple have the same number of elements).
std::tuple<std::common_reference_t<TQual<TTypes>..., UQual<UTypes>>...> denotes a type.

[edit]Member types

Member type	Definition
`type`	std::tuple<std::common_reference_t<TQual<TTypes>..., UQual<UTypes>>...>

[edit]Example

This section is incomplete
Reason: no example

[edit]See also

common_referencebasic_common_reference (C++20)	determines the common reference type of a group of types (class template)[edit]
std::basic_common_reference<std::pair> (C++23)	determines the common reference type of two`pair`s (class template specialization)[edit]