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std::basic_streambuf::in_avail

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< cpp‎ | io‎ | basic streambuf

 
 
Input / Output-Bibliothek
I / O-Manipulatoren
C-style I / O
Puffern
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(veraltet)
Streams
Original:
Streams
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Abstraktionen
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Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
Datei-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(veraltet)
ostrstream(veraltet)
strstream(veraltet)
Types
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Types
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streamoff
streamsize
fpos
Fehler Kategorie Schnittstelle
Original:
Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
std::basic_streambuf
Öffentliche Member-Funktionen
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
Positionierung
Original:
Positioning
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basic_streambuf::pubsetbuf
basic_streambuf::pubseekoff
basic_streambuf::pubseekpos
basic_streambuf::pubsync
Get area
Original:
Get area
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basic_streambuf::in_avail
basic_streambuf::snextc
basic_streambuf::sbumpc
basic_streambuf::sgetc
basic_streambuf::sgetn
Legen Bereich
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
Geschützt Member-Funktionen
Original:
Protected member functions
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basic_streambuf::basic_streambuf
basic_streambuf::operator=(C++11)
basic_streambuf::swap(C++11)
Locales
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Locales
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basic_streambuf::imbue
Positionierung
Original:
Positioning
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basic_streambuf::setbuf
basic_streambuf::seekoff
basic_streambuf::seekpos
basic_streambuf::sync
Get area
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
Legen Bereich
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
 
std::streamsize in_avail();
Gibt die Anzahl der noch verfügbaren Zeichen in der get-Bereich. Wenn ein Lese-Position verfügbar ist, effektiv kehrt egptr() - gptr(), die Größe des get-Bereich. In diesem Fall ist die Anzahl der Bytes zurückgegeben die Anzahl von Bytes, die aus dem Puffer ohne Aufruf underflow() extrahiert werden kann .
Original:
Returns the number of characters available in the get area. If a read position is available, effectively returns egptr() - gptr(), the size of the get area. In this case, the number of bytes returned is the number of bytes that can be extracted from the buffer without calling underflow().
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Wenn das Get-Bereich leer ist, ruft showmanyc() um die Anzahl der verfügbaren Bytes in dem zugehörigen Zeichensequenz zu bestimmen. In diesem Fall ist der Wert zurückgegeben die Anzahl von Bytes, die aus dem Puffer extrahiert werden kann, während es garantiert, dass underflow() nicht zurückkehren würde Traits::eof kann .
Original:
If the get area is empty, calls showmanyc() to determine the number of bytes available in the associated character sequence. In this case, the value returned is the number of bytes that can be extracted from the buffer while it's guaranteed that underflow() would not return Traits::eof.
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Inhaltsverzeichnis

[Bearbeiten] Parameter

(None)
Original:
(none)
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[Bearbeiten] Rückgabewert

Die Anzahl der Zeichen in der get-Bereich oder in der zugehörigen Zeichenfolge oder -1 wenn keine Zeichen in der zugehörigen Sequenz sind .
Original:
The number of characters available in the get area or in the associated character sequence, or -1 if no characters are available in the associated sequence.
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[Bearbeiten] Beispiel

[Bearbeiten] Siehe auch

[virtuell]
Optional bietet die Anzahl der noch verfügbaren Zeichen für die Eingabe aus der Datei
Original:
optionally provides the number of characters available for input from the file
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(virtuellen geschützten Member-Funktion of std::basic_filebuf) [edit]
extrahiert bereits verfügbaren Blöcke von Zeichen
Original:
extracts already available blocks of characters
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(öffentliche Elementfunktion of std::basic_istream) [edit]