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std::basic_streambuf::overflow

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< cpp‎ | io‎ | basic streambuf

 
 
Ingresso / libreria di output
I / O manipolatori
C-style I / O
Buffer
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(deprecato)
Streams
Original:
Streams
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Astrazioni
Original:
Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
File I / O
Original:
File I/O
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basic_ifstream
basic_ofstream
basic_fstream
String I / O
Original:
String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Array I / O
Original:
Array I/O
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istrstream(deprecato)
ostrstream(deprecato)
strstream(deprecato)
Tipi
Original:
Types
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streamoff
streamsize
fpos
Errore categoria interfaccia
Original:
Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
std::basic_streambuf
Funzioni membro pubbliche
Original:
Public member functions
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basic_streambuf::~basic_streambuf
Versioni locali
Original:
Locales
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basic_streambuf::pubimbue
basic_streambuf::getloc
Posizionamento
Original:
Positioning
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basic_streambuf::pubsetbuf
basic_streambuf::pubseekoff
basic_streambuf::pubseekpos
basic_streambuf::pubsync
Prendi zona
Original:
Get area
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basic_streambuf::in_avail
basic_streambuf::snextc
basic_streambuf::sbumpc
basic_streambuf::sgetc
basic_streambuf::sgetn
Mettere zona
Original:
Put area
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basic_streambuf::sputc
basic_streambuf::sputn
Putback
Original:
Putback
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basic_streambuf::sputbackc
basic_streambuf::sungetc
Protetto funzioni membro
Original:
Protected member functions
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basic_streambuf::basic_streambuf
basic_streambuf::operator=(C++11)
basic_streambuf::swap(C++11)
Versioni locali
Original:
Locales
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basic_streambuf::imbue
Posizionamento
Original:
Positioning
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basic_streambuf::setbuf
basic_streambuf::seekoff
basic_streambuf::seekpos
basic_streambuf::sync
Prendi zona
Original:
Get area
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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
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basic_streambuf::xsputn
basic_streambuf::overflow
basic_streambuf::pbase
basic_streambuf::pptr
basic_streambuf::epptr
basic_streambuf::pbump
basic_streambuf::setp
Putback
Original:
Putback
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basic_streambuf::pbackfail
 
int_type overflow( int_type ch = traits::eof() );
Assicura che non vi spazio nell'area messo per almeno un carattere salvando alcuni sottosequenza iniziale di caratteri a partire pbase() alla sequenza di uscita e l'aggiornamento dei puntatori alla zona di uscita (se necessario). Se non è ch traits::eof() (cioè traits::eq_int_type(c, traits::eof()) != true), si sia messo alla zona di uscita o direttamente salvato alla sequenza di uscita.
Original:
Ensures that there space at the put area for at least one character by saving some initial subsequence of characters starting at pbase() to the output sequence and updating the pointers to the output area (if needed). If ch is not traits::eof() (i.e. traits::eq_int_type(c, traits::eof()) != true), it is either put to the output area or directly saved to the output sequence.
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La funzione può aggiornare pptr, epptr e pback puntatori per definire la posizione di scrivere più dati. In caso di fallimento, la funzione fa sì che sia pptr() == nullptr o pptr() == epptr.
Original:
The function may update pptr, epptr and pback pointers to define the location to write more data. On failure, the function ensures that either pptr() == nullptr or pptr() == epptr.
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La versione della classe base della funzione non fa nulla. 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 does nothing. The derived classes may override this function to allow updates to the get area in the case of exhaustion.
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Indice

[modifica] Parametri

(Nessuno)
Original:
(none)
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[modifica] Valore di ritorno

Restituisce il valore specificato non è uguale a traits::eof() in caso di successo, traits::eof() in caso di fallimento.
Original:
Returns unspecified value not equal to traits::eof() on success, traits::eof() on failure.
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La versione della classe base della funzione restituisce traits::eof().
Original:
The base class version of the function returns traits::eof().
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[modifica] Nota

Il sputc() e sputn() chiamare questa funzione in caso di un overflow (pptr() == nullptr o pptr() >= epptr()).
Original:
The sputc() and sputn() call this function in case of an overflow (pptr() == nullptr or pptr() >= epptr()).
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[modifica] Esempio

[modifica] Vedi anche

[virtuale]
legge i caratteri della sequenza di input associato alla zona get e fa avanzare il puntatore successivo
Original:
reads characters from the associated input sequence to the get area and advances the next pointer
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(virtuale protetto funzione membro) [edit]
[virtuale]
legge caratteri dalla sequenza di input associato alla zona get
Original:
reads characters from the associated input sequence to the get area
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(virtuale protetto funzione membro) [edit]
[virtuale]
scrive i caratteri nel file associato dalla zona put
Original:
writes characters to the associated file from the put area
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(virtuale protetto funzione of std::basic_filebuf membro) [edit]
[virtuale]
aggiunge un carattere alla sequenza di uscita
Original:
appends a character to the output sequence
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(virtuale protetto funzione of std::basic_stringbuf membro) [edit]
[virtuale]
aggiunge un carattere alla sequenza di uscita, possono riassegnare o inizialmente allocare il buffer se congelato e non dinamica
Original:
appends a character to the output sequence, may reallocate or initially allocate the buffer if dynamic and not frozen
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(virtuale protetto funzione of std::strstreambuf membro) [edit]