std::basic_streambuf::uflow

 

C++

Linguaggio

Concetti

Libreria di Utilità

Stringhe

Contenitori

Algoritmi

Iteratori

Libreria matematca

Input/output

Localizzazione

Espressioni regolari(C++11)

Operazioni atomicche(C++11)

Multithreading(C++11)

 

Ingresso / libreria di output

I / O manipolatori

C-style I / O

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

basic_streambuf

basic_filebuf

basic_stringbuf

strstreambuf (deprecato)

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

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

ios_base

basic_ios

basic_istream

basic_ostream

basic_iostream

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

basic_ifstream

basic_ofstream

basic_fstream

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

basic_istringstream

basic_ostringstream

basic_stringstream

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

istrstream (deprecato)

ostrstream (deprecato)

strstream (deprecato)

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.

streamoff

streamsize

fpos

Errore categoria interfaccia Original: Error category interface The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

iostream_category (C++11)

io_errc (C++11)

 

std::basic_streambuf

Funzioni membro pubbliche Original: Public 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_streambuf::~basic_streambuf

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

basic_streambuf::pubimbue

basic_streambuf::getloc

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

basic_streambuf::pubsetbuf

basic_streambuf::pubseekoff

basic_streambuf::pubseekpos

basic_streambuf::pubsync

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

basic_streambuf::in_avail

basic_streambuf::snextc

basic_streambuf::sbumpc

basic_streambuf::sgetc

basic_streambuf::sgetn

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

basic_streambuf::sputc

basic_streambuf::sputn

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

basic_streambuf::sputbackc

basic_streambuf::sungetc

Protetto funzioni membro Original: Protected 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_streambuf::basic_streambuf

basic_streambuf::operator= (C++11)

basic_streambuf::swap (C++11)

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

basic_streambuf::imbue

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

basic_streambuf::setbuf

basic_streambuf::seekoff

basic_streambuf::seekpos

basic_streambuf::sync

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

basic_streambuf::showmanyc

basic_streambuf::underflow

basic_streambuf::uflow

basic_streambuf::xsgetn

basic_streambuf::eback basic_streambuf::gptr basic_streambuf::egptr

basic_streambuf::gbump

basic_streambuf::setg

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

basic_streambuf::xsputn

basic_streambuf::overflow

basic_streambuf::pbase basic_streambuf::pptr basic_streambuf::epptr

basic_streambuf::pbump

basic_streambuf::setp

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

basic_streambuf::pbackfail

 

int_type uflow();

Assicura che almeno un carattere è disponibile nell'area di immissione aggiornando i puntatori alla zona di ingresso (se necessario). In caso di successo restituisce il valore di quel personaggio e fa avanzare il valore della arrivare puntatore di un carattere. Il ritorno di guasto traits::eof().

Original:

Ensures that at least one character is available in the input area by updating the pointers to the input area (if needed). On success returns the value of that character and advances the value of the get pointer by one character. On failure returns traits::eof().

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La funzione può aggiornare gptr, egptr e eback puntatori per definire la posizione dei dati appena caricati (se presenti). In caso di fallimento, la funzione fa sì che sia gptr()== nullptr o gptr()== egptr.

Original:

The function may update gptr, egptr and eback pointers to define the location of newly loaded data (if any). On failure, the function ensures that either gptr()== nullptr or gptr()== egptr.

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La versione della classe base delle chiamate di funzione underflow. Le classi derivate possono eseguire l'override di questa funzione per consentire gli aggiornamenti alla zona get in caso di esaurimento.

Original:

The base class version of the function calls underflow. The derived classes may override this function to allow updates to the get area in the case of exhaustion.

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Parametri

(Nessuno)

Original:

(none)

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Valore di ritorno

Il valore del carattere che è stato puntato dal puntatore ottenere' prima che fosse avanzata da uno o traits::eof() altrimenti.

Original:

The value of the character that was pointed to by the get pointer before it was advanced by one, or traits::eof() otherwise.

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La versione della classe base della funzione restituisce il valore restituito da underflow.

Original:

The base class version of the function returns the value returned by underflow.

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Nota

Le funzioni pubbliche di std::streambuf chiamare questa funzione solo se gptr()== nullptr o gptr()>= egptr().

Original:

The public functions of std::streambuf call this function only if gptr()== nullptr or gptr()>= egptr().

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Vedi anche

underflow [virtuale]	legge caratteri dalla sequenza di input associato alla zona get Original: reads characters from the associated input sequence to the get area The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (virtuale protetto funzione membro)
overflow [virtuale]	scrive caratteri della sequenza di emissione associato dalla zona put Original: writes characters to the associated output sequence from the put area The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (virtuale protetto funzione membro)