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std::unique_ptr::swap

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< cpp‎ | memory‎ | unique ptr

 
 
 
La gestion dynamique de la mémoire
Faible niveau de gestion de la mémoire
Répartiteurs
Original:
Allocators
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allocator
allocator_traits (C++11)
allocator_arg_t (C++11)
allocator_arg (C++11)
uses_allocator (C++11)
scoped_allocator_adaptor (C++11)
Non initialisée stockage
Original:
Uninitialized storage
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uninitialized_copy
uninitialized_copy_n (C++11)
uninitialized_fill
uninitialized_fill_n
raw_storage_iterator
get_temporary_buffer
return_temporary_buffer
Pointeurs intelligents
Original:
Smart pointers
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unique_ptr (C++11)
shared_ptr (C++11)
weak_ptr (C++11)
auto_ptr (obsolète)
owner_less (C++11)
enable_shared_from_this (C++11)
bad_weak_ptr (C++11)
default_delete (C++11)
Soutien garbage collection
Original:
Garbage collection support
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declare_reachable (C++11)
undeclare_reachable (C++11)
declare_no_pointers (C++11)
undeclare_no_pointers (C++11)
pointer_safety (C++11)
get_pointer_safety (C++11)
Divers
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Miscellaneous
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pointer_traits (C++11)
addressof (C++11)
align (C++11)
Bibliothèque C
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C Library
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std :: unique_ptr
Les fonctions membres
Original:
Member functions
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unique_ptr::unique_ptr
unique_ptr::~unique_ptr
unique_ptr::operator=
Modificateurs
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Modifiers
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unique_ptr::release
unique_ptr::reset
unique_ptr::swap
Des observateurs
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Observers
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unique_ptr::get
unique_ptr::get_deleter
unique_ptr::operator bool
unique_ptr::operator*
unique_ptr::operator->
unique_ptr::operator[]
Tiers fonctions
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Non-member functions
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operator==
operator!=
operator<
operator>
operator<=
operator>
operator>=
std::swap
std::hash
 
void swap(unique_ptr& other);
(depuis C++11)
Echange les objets gérés et suppresseurs associés avec un autre objet unique_ptr other .
Original:
Swaps the managed objects and associated deleters with another unique_ptr object other.
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Sommaire

[modifier] Paramètres

other -
un autre objet unique_ptr d'échanger l'objet managé et le deleter avec
Original:
another unique_ptr object to swap the managed object and the deleter with
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[modifier] Retourne la valeur

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

noexcept specification:  
noexcept
   (depuis C++11)

[modifier] Exemple

#include <iostream>
#include <memory>
 
struct Foo {
    Foo(int _val) : val(_val) { std::cout << "Foo...\n"; }
    ~Foo() { std::cout << "~Foo...\n"; }
    int val;
};
 
int main()
{
    std::unique_ptr<Foo> up1(new Foo(1));
    std::unique_ptr<Foo> up2(new Foo(2));
 
    up1.swap(up2);
 
    std::cout << "up1->val:" << up1->val << std::endl;
    std::cout << "up2->val:" << up2->val << std::endl;
}

Résultat :

Foo...
Foo...
up1->val:2
up2->val:1
~Foo...
~Foo...