std::pair::operator=

 

C++

Language

Standard library headers

Concepts

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

 

Utilities library

Type support (basic types, RTTI, type traits)

Dynamic memory management

Error handling

Program utilities

Variadic functions

Date and time

Function objects

initializer_list (C++11)

bitset

hash (C++11)

Relational operators

rel_ops::operator!= rel_ops::operator> rel_ops::operator<= rel_ops::operator>=

Pairs and tuples

pair

tuple (C++11)

piecewise_construct_t (C++11)

piecewise_construct (C++11)

Swap, forward and move

swap

forward (C++11)

move (C++11)

move_if_noexcept (C++11)

declval (C++11)

 

std::pair

Member functions

pair::pair

pair::operator=

pair::swap

Non-member functions

make_pair

operator= operator!= operator< operator<= operator> operator>=

std::swap

get (C++11)

Helper classes

tuple_size (C++11)

tuple_element (C++11)

 

pair& operator=( const pair& other );	(1)
template< class U1, class U2 > pair& operator=( const pair<U1,U2>& other );	(2)
pair& operator=( pair&& other );	(3)	(since C++11)
template< class U1, class U2 > pair& operator=( pair<U1,U2>&& other );	(4)	(since C++11)

Replaces the contents of the pair.

1) Copy assignment operator. Replaces the contents with a copy of the contents of other.

2) Assigns other.first to first and other.second to second

3) Move assignment operator. Replaces the contents with those of other using move semantics.

4) Assigns std::forward<U1>(p.first) to first and std::forward<U2>(p.second) to second.

Parameters

other

-

pair of values to replace the contents of this pair

Return value

*this

Exceptions

1-2) (none)

3)

noexcept specification:  (since C++11)

noexcept(     is_nothrow_move_assignable<T1>::value &&     is_nothrow_move_assignable<T2>::value )

4) (none)