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std::return_temporary_buffer

Da cppreference.com.
< cpp‎ | memory

 
 
Utilità libreria
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Gestione della memoria dinamica
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Funzione oggetti
initializer_list(C++11)
bitset
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Relational operators
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rel_ops::operator!=
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Swap, in avanti e spostare
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Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
Gestione della memoria dinamica
Basso livello di gestione della memoria
Allocatori
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Allocators
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allocator_arg_t(C++11)
allocator_arg(C++11)
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Non inizializzata stoccaggio
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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
Puntatori intelligenti
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C Library
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C Library
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Defined in header <memory>
template< class T >
void return_temporary_buffer( T* p )
Stoccaggio rilascia precedentemente allocato con std::get_temporary_buffer.
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Deallocates storage previously allocated with std::get_temporary_buffer.
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Indice

[modifica] Parametri

p -
il puntatore precedentemente restituita dal std::get_temporary_buffer
Original:
the pointer previously returned by std::get_temporary_buffer
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[modifica] Valore di ritorno

(Nessuno)
Original:
(none)
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[modifica] Esempio

[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);
}

Output:

string
1
test
...

[modifica] Vedi anche

ottiene stoccaggio non inizializzata
Original:
obtains uninitialized storage
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(funzione di modello) [edit]