[ Web Proxy ]
URL:
Viewing: https://de.cppreference.com/cpp/memory/shared_ptr/make_shared [Back]  [Original]
std::make_shared cppreference.com
cppreference.com
Namensrume
Varianten

    std::make_shared

    Aus cppreference.com
    []

    This page has been machine-translated from the English version of the wiki using Google Translate.

    The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here.

    Click here for the English version of this page

    <metanoindex/>

     
    C++
     
    Utilities-Bibliothek
     
    Dynamische Speicherverwaltung
    Low-Level-Speicherverwaltung
    Zuweiser
    Original:
    Allocators
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    allocator
    allocator_traits(C++11)
    allocator_arg_t(C++11)
    allocator_arg(C++11)
    uses_allocator(C++11)
    scoped_allocator_adaptor(C++11)
    Initialisierter Speicher
    Original:
    Uninitialized storage
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    uninitialized_copy
    uninitialized_copy_n(C++11)
    uninitialized_fill
    uninitialized_fill_n
    raw_storage_iterator
    get_temporary_buffer
    return_temporary_buffer
    Intelligente Zeiger
    Original:
    Smart pointers
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    unique_ptr(C++11)
    shared_ptr(C++11)
    weak_ptr(C++11)
    auto_ptr(veraltet)
    owner_less(C++11)
    enable_shared_from_this(C++11)
    bad_weak_ptr(C++11)
    default_delete(C++11)
    Garbage Collection Untersttzung
    Original:
    Garbage collection support
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    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)
    Verschiedenes
    Original:
    Miscellaneous
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    pointer_traits(C++11)
    addressof(C++11)
    align(C++11)
    C-Bibliothek
    Original:
    C Library
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
     
    std::shared_ptr
    Member-Funktionen
    Original:
    Member functions
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    shared_ptr::shared_ptr
    shared_ptr::~shared_ptr
    shared_ptr::operator=
    Modifiers
    Original:
    Modifiers
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    shared_ptr::reset
    shared_ptr::swap
    Beobachter
    Original:
    Observers
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    shared_ptr::get
    shared_ptr::operator*
    shared_ptr::operator->
    shared_ptr::use_count
    shared_ptr::unique
    shared_ptr::operator bool
    shared_ptr::owner_before
    Non-Member-Funktionen
    Original:
    Non-member functions
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    std::swap
    make_shared
    allocate_shared
    static_pointer_cast
    dynamic_pointer_cast
    const_pointer_cast
    get_deleter
    operator==
    operator|=
    operator<
    operator<=
    operator>
    operator>=
    operator<<
    atomic_is_lock_free
    atomic_load
    atomic_load_explicit
    atomic_store
    atomic_store_explicit
    atomic_exchange
    atomic_exchange_explicit
    atomic_compare_exchange_weak
    atomic_compare_exchange_strong
    atomic_compare_exchange_weak_explicit
    atomic_compare_exchange_strong_explicit
    std::hash
     
    <tbody> </tbody>
    definiert in Header <memory>
    template< class T, class... Args > shared_ptr<T> make_shared( Args&&... args );
    Erzeugt ein Objekt vom Typ T und wickelt es in einem std::shared_ptr mit args als Parameter-Liste fr den Konstruktor T .
    Original:
    Constructs an object of type T and wraps it in a std::shared_ptr using args as the parameter list for the constructor of T.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Parameter

    args -
    Liste der Argumente, mit denen eine Instanz T gebaut werden soll .
    Original:
    list of arguments with which an instance of T will be constructed.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Rckgabewert

    std::shared_ptr einer Instanz des Typs T .
    Original:
    std::shared_ptr of an instance of type T.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Ausnahmen

    Kann std::bad_alloc oder eine Ausnahme von der contructor der T geworfen werfen .
    Original:
    May throw std::bad_alloc or any exception thrown by the contructor of T.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Notes

    Diese Funktion Speicher fr die T-Objekt und fr die shared_ptr der Kontrolle Block mit einem einzigen Speicherzuweisung. Im Gegensatz dazu fhrt die Erklrung std::shared_ptr<T> p(new T(Args...)) zwei Speicherzuordnungen, die unntigen Overhead entstehen knnen .
    Original:
    This function allocates memory for the T object and for the shared_ptr's control block with a single memory allocation. In contrast, the declaration std::shared_ptr<T> p(new T(Args...)) performs two memory allocations, which may incur unnecessary overhead.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Beispiel

    #include <iostream>
#include <memory>

void foo(std::shared_ptr<int> i)
{
    (*i)++;
}

int main()
{
    auto sp = std::make_shared<int>(10);
    foo(sp);
    std::cout << *sp << std::endl;
}

    Output: 

    11

    Siehe auch

    		 erzeugt einen neuen shared_ptr
    (ffentliche Elementfunktion) [edit]
    		erzeugt einen shared_ptr, der ein neues Objekt verwaltet, das mittels eines Allokators erzeugt wird.
    (Funktions-Template) [edit]
    Web Proxy Viewer  |  New URL  |  Original Page