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std::basic_streambuf::showmanyc

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< cpp‎ | io‎ | basic streambuf

 
 
D'entrée / sortie de bibliothèque
I / O manipulateurs
C-style I / O
Tampons
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf (obsolète)
Cours d'eau
Original:
Streams
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Abstractions
Original:
Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
Fichier E / O
Original:
File I/O
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basic_ifstream
basic_ofstream
basic_fstream
Chaîne I / O
Original:
String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Tableau I / O
Original:
Array I/O
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istrstream (obsolète)
ostrstream (obsolète)
strstream (obsolète)
Types
Original:
Types
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streamoff
streamsize
fpos
Interface catégorie d'erreur
Original:
Error category interface
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iostream_category (C++11)
io_errc (C++11)
 
std::basic_streambuf
Fonctions membres publiques
Original:
Public member functions
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basic_streambuf::~basic_streambuf
Locales
Original:
Locales
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basic_streambuf::pubimbue
basic_streambuf::getloc
Positionnement
Original:
Positioning
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basic_streambuf::pubsetbuf
basic_streambuf::pubseekoff
basic_streambuf::pubseekpos
basic_streambuf::pubsync
Obtenez région
Original:
Get area
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basic_streambuf::in_avail
basic_streambuf::snextc
basic_streambuf::sbumpc
basic_streambuf::sgetc
basic_streambuf::sgetn
Mettez région
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
Protégé fonctions membres
Original:
Protected member functions
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basic_streambuf::basic_streambuf
basic_streambuf::operator= (C++11)
basic_streambuf::swap (C++11)
Locales
Original:
Locales
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basic_streambuf::imbue
Positionnement
Original:
Positioning
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basic_streambuf::setbuf
basic_streambuf::seekoff
basic_streambuf::seekpos
basic_streambuf::sync
Obtenez région
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
Mettez région
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();
Estimer le nombre de caractères disponibles pour l'entrée dans la séquence de caractères associée. underflow() est garanti de ne pas retourner traits::eof() au moins jusqu'à ce que le nombre de caractères extraite .
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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Sommaire

[modifier] Paramètres

(Aucun)
Original:
(none)
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[modifier] Retourne la valeur

Le nombre de caractères disponibles dans la séquence, ou -1 si aucun caractère n'est disponible. Dans ce cas, underflow() et uflow() échouera .
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 version classe de base retourne 0 .
Original:
The base class version returns 0.
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[modifier] Exemple

[modifier] Voir aussi

obtient le nombre de caractères disponibles immédiatement dans la zone d'obtention
Original:
obtains the number of characters immediately available in the get area
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(fonction membre publique) [edit]
[
virtuel
Original:
virtual
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]
fournit éventuellement le nombre de caractères disponibles pour l'entrée à partir du fichier
Original:
optionally provides the number of characters available for input from the file
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(fonction membre virtuelle protégée de std::basic_filebuf) [edit]