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std::unique_ptr::release

De cppreference.com
< cpp‎ | memory‎ | unique ptr

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C++
 
Bibliothèque d'utilitaires
 
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
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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
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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
 
pointer release();
 (depuis C++11)
Communiqués de la propriété de l'objet géré le cas échéant. get() retours nullptr après l'appel .
Original:
Releases the ownership of the managed object if any. get() returns nullptr after the call.
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Sommaire

[modifier] Paramètres

(Aucun)
Original:
(none)
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[modifier] Retourne la valeur

Pointeur sur l'objet géré ou nullptr s'il n'y avait pas d'objet géré, c'est à dire la valeur qui serait retourné par get() avant l'appel .
Original:
Pointer to the managed object or nullptr if there was no managed object, i.e. the value which would be returned by get() before the call.
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[modifier] Exceptions

noexcept specification:  
noexcept
   (depuis C++11)

[modifier] Exemple

#include <memory>
#include <iostream>
 
struct Foo {
    Foo() { std::cout << "Foo\n"; }
    ~Foo() { std::cout << "~Foo\n"; }
};
 
int main()
{
    std::cout << "Creating new Foo...\n";
    std::unique_ptr<Foo> up(new Foo());
 
    std::cout << "About to release Foo...\n";
    Foo* fp = up.release();
 
    if (up.get() == nullptr)
        std::cout << "Foo is no longer owned by unique_ptr...\n";
 
    delete fp;
}

Résultat : 

Creating new Foo...
Foo
About to release Foo...
Foo is no longer owned by unique_ptr...
~Foo

[modifier] Voir aussi
renvoie un pointeur sur l'objet géré
Original:
returns a pointer to the managed object
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(fonction membre publique) [edit]
remplace l'objet géré
Original:
replaces the managed object
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(fonction membre publique) [edit]
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