Namespace
Varianti

std::free

Da cppreference.com.
< cpp‎ | memory‎ | c

 
 
Utilità libreria
Tipo di supporto (basic types, RTTI, type traits)
Gestione della memoria dinamica
La gestione degli errori
Programma di utilità
Funzioni variadic
Data e ora
Funzione oggetti
initializer_list(C++11)
bitset
hash(C++11)
Gli operatori relazionali
Original:
Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Coppie e tuple
Original:
Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Swap, in avanti e spostare
Original:
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
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 inizializzata stoccaggio
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
Puntatori intelligenti
Original:
Smart pointers
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unique_ptr(C++11)
shared_ptr(C++11)
weak_ptr(C++11)
auto_ptr(deprecato)
owner_less(C++11)
enable_shared_from_this(C++11)
bad_weak_ptr(C++11)
default_delete(C++11)
Garbage collection supporto
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)
Varie
Original:
Miscellaneous
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pointer_traits(C++11)
addressof(C++11)
align(C++11)
C Library
Original:
C Library
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realloc
free
 
Defined in header <cstdlib>
void free( void* ptr );
Rilascia lo spazio precedentemente allocato da malloc(), calloc() o realloc(). Se ptr è null-pointer, la funzione non fa nulla.
Original:
Deallocates the space previously allocated by malloc(), calloc() or realloc(). If ptr is null-pointer, the function does nothing.
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Il comportamento è indefinito se ptr non corrisponde a un puntatore restituito in precedenza da malloc(), calloc() o realloc(). Inoltre, il comportamento è indefinito se l'area di memoria a cui si riferisce ptr è già stato deallocato, cioè free() o realloc() è già stato chiamato con ptr come argomento e chiamate per malloc(), calloc() o realloc() portato a un puntatore pari a ptr poi.
Original:
The behavior is undefined if ptr does not match a pointer returned earlier by malloc(), calloc() or realloc(). Also, the behavior is undefined if the memory area referred to by ptr has already been deallocated, that is, free() or realloc() has already been called with ptr as the argument and no calls to malloc(), calloc() or realloc() resulted in a pointer equal to ptr afterwards.
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Indice

[modifica] Parametri

ptr -
puntatore alla memoria da deallocare
Original:
pointer to the memory to deallocate
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[modifica] Valore di ritorno

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

[modifica] Vedi anche