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std::basic_streambuf::showmanyc

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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
 
protected:
std::streamsize showmanyc();
Stima il numero di caratteri disponibili per l'ingresso nella sequenza di caratteri associata. underflow() è garantito di non tornare traits::eof() almeno fino a che i caratteri vengono estratti molti.
Original:
Estimates the number of characters available for input in the associated character sequence. underflow() is guaranteed not to return traits::eof() until at least that many characters are extracted.
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Indice

[modifica] Parametri

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

Il numero di caratteri disponibili nella sequenza, o se non -1 caratteri disponibili. In tal caso, underflow() e uflow() fallirà.
Original:
The number of characters available in the sequence, or -1 if no characters are available. In that case, underflow() and uflow() will fail.
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La versione della classe base restituisce 0.
Original:
The base class version returns 0.
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[modifica] Esempio

[modifica] Vedi anche

ottiene il numero di caratteri immediatamente disponibili nella zona get
Original:
obtains the number of characters immediately available in the get area
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(membro pubblico funzione) [edit]
[virtuale]
fornisce facoltativamente il numero di caratteri disponibili per l'input dal file
Original:
optionally provides the number of characters available for input from the file
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(virtuale protetto funzione of std::basic_filebuf membro) [edit]