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std::return_temporary_buffer

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< cpp‎ | memory

 
 
 
La gestion dynamique de la mémoire
Faible niveau de gestion de la mémoire
Répartiteurs
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Allocators
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allocator
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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
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Garbage collection support
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C Library
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Defined in header <memory>
template< class T >
void return_temporary_buffer( T* p )
Stockage libère précédemment allouée avec std::get_temporary_buffer .
Original:
Deallocates storage previously allocated with std::get_temporary_buffer.
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Sommaire

[modifier] Paramètres

p -
le pointeur renvoyé précédemment par std::get_temporary_buffer
Original:
the pointer previously returned by std::get_temporary_buffer
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[modifier] Retourne la valeur

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

[edit]
#include <algorithm>
#include <iostream>
#include <memory>
#include <string>
 
int main()
{
    const std::string s[] = {"string", "1", "test", "..."};
    std::string* p = std::get_temporary_buffer<std::string>(4).first;
 
    std::copy(std::begin(s), std::end(s),
              std::raw_storage_iterator<std::string*, std::string>(p));
 
    for (std::string* i = p; i != p+4; ++i) {
        std::cout << *i << '\n';
        i->~basic_string<char>();
    }
    std::return_temporary_buffer(p);
}

Résultat :

string
1
test
...

[modifier] Voir aussi

obtient de stockage non initialisée
Original:
obtains uninitialized storage
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(fonction générique) [edit]