< cpp‎ | utility‎ | pair
Utilities library
Language support
Type support (basic types, RTTI)
Library feature-test macros (C++20)
Dynamic memory management
Program utilities
Coroutine support (C++20)
Variadic functions
Debugging support
Three-way comparison
General utilities
Date and time
Function objects
Formatting library (C++20)
Relational operators (deprecated in C++20)
Integer comparison functions
Swap and type operations
Common vocabulary types
Elementary string conversions

Defined in header <utility>
template< class T1, class T2, class U1, class U2 >

  requires requires { typename std::pair<std::common_type_t<T1, U1>,
                                         std::common_type_t<T2, U2>>; }

struct common_type<std::pair<T1, T2>, std::pair<U1, U2>>;
(since C++23)

The common type of two pairs is a pair of both common types of corresponding element types of both pairs.

The common type is defined only if both pairs of corresponding element types have common types.

[edit] Member types

Member type Definition
type std::pair<std::common_type_t<T1, U1>, std::common_type_t<T2, U2>>

[edit] Example

[edit] See also

determines the common type of a group of types
(class template) [edit]
determines the common type of a tuple and a tuple-like type
(class template specialization) [edit]