Varianti

    cpp/string/basic string/begin: differenze tra le versioni

    Da cppreference.com.
    ← Differenza precedente
    P12bot (discussione | contributi)
    Bot
    111 718 modifiche
    m r2.7.3) (Bot: Aggiungo en, ja, pl, pt, ru
    P12bot (discussione | contributi)
    Bot
    111 718 modifiche
    m Use {{lc}}. Update links. Various fixes.
     
    (3 versioni intermedie di 3 utenti non mostrate)
    Riga 1: Riga 1:
    {{title|begin}}
    {{
    Sintassi:
    title | begin
    }}


    <syntaxhighlight lang="cpp">
    un iteratore al primo della stringa. |.
        #include <string>
        iterator begin();
        const_iterator begin() const;
    </syntaxhighlight>
    La funzione ''begin()'' ritorna un iteratore che punta al primo elemento della stringa.
    ''begin()'' in genere ha tempo di esecuzione [[cpp/complexity | constante]].
    Ad esempio, il seguente codice utilizza ''begin()'' per inizializzare un iteratore che e' poi usato per scorrere una lista di caratteri:


    <syntaxhighlight lang="cpp">
    ===
        // Crea una lista di caratteri
    ()()}
        list<char> charList;
        for( int i=0; i < 10; i++ ) {
          static const char letters[] = "ABCDEFGHIJ";
          charList.push_front( letters[i] );
        }
        // Stampa la lista
        list<char>::iterator theIterator;
        for ( theIterator = charList.begin();
                  theIterator != charList.end();
                  ++theIterator ) {
          cout << *theIterator;
        }
    </syntaxhighlight>


    Argomenti correlati: [[cpp/string/basic_string/end | end]], [[cpp/string/basic_string/rbegin | rbegin]], [[cpp/string/basic_string/rend | rend]]
    ||


    [[en:cpp/string/basic string/begin]]
    [[en:cpp/string/basic string/begin]]
    [[ja:cpp/string/basic string/begin]]
    [[ja:cpp/string/basic string/begin]]
    [[pl:cpp/string/basic string/begin]]
    [[pl:cpp/string/basic string/begin]]
    [[pt:cpp/string/basic string/begin]]
    [[pt:cpp/string/basic string/begin]]
    [[ru:cpp/string/basic string/begin]]
    [[ru:cpp/string/basic string/begin]]

    Versione attuale delle 22:08, 2 lug 2013

    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++
     
    Stringhe libreria
    Null-stringhe terminate
    Original:
    Null-terminated strings
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Byte stringhe
    Multibyte stringhe
    Stringhe larghe
    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.
    basic_string
    char_traits
     
    std::basic_string
    Membri funzioni
    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.
    basic_string::basic_string
    basic_string::operator=
    basic_string::assign
    basic_string::get_allocator
    Elemento accesso
    Original:
    Element access
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    basic_string::at
    basic_string::operator[]
    basic_string::front(C++11)
    basic_string::back(C++11)
    basic_string::data
    basic_string::c_str
    Iteratori
    Original:
    Iterators
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    basic_string::begin
    basic_string::cbegin
    (C++11)
    basic_string::end
    basic_string::cend
    (C++11)
    basic_string::rbegin
    basic_string::crbegin
    (C++11)
    basic_string::rend
    basic_string::crend
    (C++11)
    Capacità
    Original:
    Capacity
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    basic_string::empty
    basic_string::size
    basic_string::length
    basic_string::max_size
    basic_string::reserve
    basic_string::capacity
    basic_string::shrink_to_fit(C++11)
    Operazioni
    Original:
    Operations
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    basic_string::clear
    basic_string::insert
    basic_string::erase
    basic_string::push_back
    basic_string::pop_back(C++11)
    basic_string::append
    basic_string::operator+=
    basic_string::compare
    basic_string::replace
    basic_string::substr
    basic_string::copy
    basic_string::resize
    basic_string::swap
    Cerca
    Original:
    Search
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    basic_string::find
    basic_string::rfind
    basic_string::find_first_of
    basic_string::find_first_not_of
    basic_string::find_last_of
    basic_string::find_last_not_of
    Costanti
    Original:
    Constants
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    basic_string::npos
    Non membri funzioni
    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.
    operator+
    operator==
    operator!=
    operator<
    operator>
    operator<=
    operator>=
    swap(std::basic_string)
    operator<<
    operator>>
    getline
    stoi
    stol
    stoll    		(C++11)
    (C++11)
    (C++11)
    stoul
    stoull    		(C++11)
    (C++11)
    stof
    stod
    stold    		(C++11)
    (C++11)
    (C++11)
    to_string(C++11)
    to_wstring(C++11)
    Helper classi
    Original:
    Helper classes
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    hash<std::string>
    hash<std::wstring>
    hash<std::u32string>
    hash<std::u16string>    		(C++11)
     
    <tbody> </tbody>
    iterator begin();
    const_iterator begin() const;
    const_iterator cbegin() const;
    		 (dal C++11)
    Restituisce un iteratore al primo carattere della stringa.
    Original:
    Returns an iterator to the first character of the string.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Parametri

    (Nessuno)
    Original:
    (none)
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Valore di ritorno

    iteratore al primo carattere
    Original:
    iterator to the first character
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Complessità

    Constant
    Original:
    Constant
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Vedi anche


    (C++11)
    		 restituisce un iteratore dalla coda
    (metodo pubblico) [modifica]