Varianti

    std::free

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    <metanoindex/>

     
    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
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    Relational operators
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    rel_ops::operator!=
    rel_ops::operator>
    rel_ops::operator<=
    rel_ops::operator>=
    Coppie e tuple
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    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
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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
    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
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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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    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
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    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
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    Miscellaneous
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    pointer_traits(C++11)
    addressof(C++11)
    align(C++11)
    C Library
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    C Library
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    <tbody> </tbody>
    Elemento definito nell'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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    Parametri

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

    (Nessuno)
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    (none)
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    Esempio

    This section is incomplete
    Reason: no example

    Vedi anche

    C documentation for free