close
Varianti

    Storage duration specifiers

    Da cppreference.com.
    Image

    Questa pagina è stata tradotta in modo automatico dalla versione in ineglese della wiki usando Google Translate.

    La traduzione potrebbe contenere errori e termini strani. Muovi il puntatore sopra al testo per vedere la versione originale. Puoi aiutarci a correggere gli gli errori. Per ulteriori istruzioni clicca qui.

    Click here for the English version of this page

    <metanoindex/>

     
    C++
     
    Linguaggio C + +
    Temi generali
    Original:
    General topics
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Controllo del flusso
    Original:
    Flow control
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Dichiarazioni esecuzione condizionale
    Original:
    Conditional execution statements
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Iterazione dichiarazioni
    Original:
    Iteration statements
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Vai dichiarazioni
    Original:
    Jump statements
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Funzioni
    Original:
    Functions
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    dichiarazione di funzione
    lambda funzione dichiarazione
    funzione di modello
    specificatore inline
    eccezioni specifiche (deprecato)
    noexcept specificatore (C++11)
    Eccezioni
    Original:
    Exceptions
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Spazi dei nomi
    Original:
    Namespaces
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Tipi
    Original:
    Types
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    decltype specifier (C++11)
    Specifiers
    Original:
    Specifiers
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    cv specificatori
    Durata di stoccaggio specificatori
    constexpr specificatore (C++11)
    specificatore auto (C++11)
    alignas specificatore (C++11)
    Inizializzazione
    Original:
    Initialization
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Letterali
    Original:
    Literals
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Espressioni
    Original:
    Expressions
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    rappresentazioni alternative
    Utilities
    Original:
    Utilities
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Tipi
    Original:
    Types
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    typedef declaration
    Tipo alias dichiarazione (C++11)
    attributi (C++11)
    Lancia
    Original:
    Casts
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    conversioni implicite
    const_cast conversion
    static_cast conversion
    dynamic_cast conversion
    reinterpret_cast conversion
    Fusione C-stile e funzionale
    Occupazione della memoria
    Original:
    Memory allocation
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Classi
    Original:
    Classes
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Specifiche per una classe di funzioni proprietà
    Original:
    Class-specific function properties
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    esplicito (C++11)
    statico
    Funzioni membro speciali
    Original:
    Special member functions
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Modelli
    Original:
    Templates
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    classe template
    funzione di modello
    modello di specializzazione
    parametri confezioni (C++11)
    Varie
    Original:
    Miscellaneous
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Montaggio in linea
     
    • auto - automatico durata di conservazione. (deprecato)
      Original:
      auto - automatic storage duration. (deprecato)
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
    • register - automatico durata di conservazione. Accenna anche al compilatore per inserire la variabile nel registro del processore. (deprecato)
      Original:
      register - automatic storage duration. Also hints to the compiler to place the variable in the processor's register. (deprecato)
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
    • static - statico durata di archiviazione e interno linkage
      Original:
      static - static storage duration and internal linkage
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
    • extern - statico stoccaggio durata e collegamento esterno
      Original:
      extern - static storage duration and external linkage
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
    • thread_local - filo stoccaggio durata. (dal C++11)
      Original:
      thread_local - thread storage duration. (dal C++11)
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

    Spiegazione

    Durata di stoccaggio

    Tutte le variabili in un programma hanno una delle durate di memorizzazione:
    Original:
    All variables in a program have one of the following storage durations:
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    • ' 'Automatico durata di conservazione. La variabile viene assegnato all'inizio del blocco di codice racchiude e deallocato sull'estremità. Tutte le variabili globali non hanno questa durata di conservazione, ad eccezione di quelli dichiarati static, extern o thread_local.
      Original:
      automatic storage duration. The variable is allocated at the beginning of the enclosing code block and deallocated on end. All non-global variables have this storage duration, except those declared static, extern or thread_local.
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
    • ' 'Static durata di conservazione. La variabile è assegnato quando il programma inizia e deallocato quando il programma termina. Una sola istanza della variabile esiste. Tutte le variabili globali hanno la durata di conservazione, oltre a quelle dichiarate con static o extern.
      Original:
      static storage duration. The variable is allocated when the program begins and deallocated when the program ends. Only one instance of the variable exists. All global variables have this storage duration, plus those declared with static or extern.
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
    • ' Filo durata di conservazione (dal C++11). La variabile è assegnato quando il thread inizia e deallocato quando il thread termina. Ogni thread ha una propria istanza della variabile. Solo le variabili dichiarate thread_local hanno questa durata di conservazione. thread_local può essere dichiarata solo per le variabili globali, oltre a quelle dichiarate con static o extern.
      Original:
      thread storage duration (dal C++11). The variable is allocated when the thread begins and deallocated when the thread ends. Each thread has its own instance of the variable. Only variables declared thread_local have this storage duration. thread_local can only be declared for global variables, plus those declared with static or extern.
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

    Linkage

    Linkage si riferisce alla capacità di una variabile o funzione da cui altri ambiti. Se una variabile o una funzione con lo stesso identificatore è dichiarata in ambiti diversi, ma non può essere indicato da tutti loro, poi diverse istanze della variabile vengono generati. I collegamenti disponibili sono:
    Original:
    Linkage refers to the ability of a variable or function to be referred to in other scopes. If a variable or function with the same identifier is declared in several scopes, but cannot be referred to from all of them, then several instances of the variable are generated. The following linkages are recognized:
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    • ' 'Nessun collegamento. La variabile può essere definito solo dal campo di applicazione che è dentro tutte le variabili con durata di archiviazione automatica, filo e dinamica hanno questo collegamento.
      Original:
      no linkage. The variable can be referred to only from the scope it is in. All variables with automatic, thread and dynamic storage durations have this linkage.
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
    • ' 'Interno collegamento. La variabile può essere definito da tutti gli ambiti in unità di traduzione corrente. Tutte le variabili con durata di archiviazione statica che sono o dichiarati static, o const ma non extern, hanno questo collegamento.
      Original:
      internal linkage. The variable can be referred to from all scopes in the current translation unit. All variables with static storage duration which are either declared static, or const but not extern, have this linkage.
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
    • ' 'Esterno per l'attacco. La variabile può essere indicato dagli scopi delle altre unità di traduzione. Tutte le variabili con durata di archiviazione statica hanno questo legame, ad eccezione di quelli dichiarati static, o const ma non extern.
      Original:
      external linkage. The variable can be referred to from the scopes in the other translation units. All variables with static storage duration have this linkage, except those declared static, or const but not extern.
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

    Parole chiave

    auto, register, static, extern, thread_local

    Esempio

    This section is incomplete