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std::pair::swap

De cppreference.com
< cpp‎ | utility‎ | pair

 
 
 
std::pair
Les fonctions membres
Original:
Member functions
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pair::pair
pair::operator=
pair::swap
Tiers fonctions
Original:
Non-member functions
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make_pair
operator=
operator!=
operator<
operator<=
operator>
operator>=
std::swap
get (C++11)
Classes d'aide
Original:
Helper classes
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tuple_size (C++11)
tuple_element (C++11)
 
void swap(pair& other);
(depuis C++11)
Échanges avec first other.first et second avec other.second .
Original:
Swaps first with other.first and second with other.second.
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Sommaire

[modifier] Paramètres

other -
paire de valeurs à échanger
Original:
pair of values to swap
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[modifier] Retourne la valeur

(Aucun)
Original:
(none)
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[modifier] Exceptions

noexcept specification:   (depuis C++11)
noexcept(

     noexcept(std::swap(first, p.first)) &&
     noexcept(std::swap(second, p.second))

)

[modifier] Exemple

#include <iostream>
#include <utility>
#include <string>
int main()
{
    std::pair<int, std::string> p1, p2;
    p1 = std::make_pair(10, "test");
    p2.swap(p1);
    std::cout << "(" << p2.first << ", " << p2.second << ")\n";
}

Résultat :

(10, test)

[modifier] Voir aussi