std::basic_istream
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| definiert in Header <istream>
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template< class CharT, class Traits = std::char_traits<CharT> > class basic_istream : virtual public std::basic_ios<CharT, Traits> |
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Das Klassen-Template
basic_istream bietet Untersttzung fr High Level Eingang Operationen auf Zeichen-Streams. Die untersttzten Operationen gehren formatiert Eingang (zB Integer-Werte oder Leerzeichen getrennte Zeichen und Zeichenketten) und unformatierte Eingabe (z. B. Roh-Zeichen und Zeichen-Arrays). Diese Funktionalitt ist in Bezug auf die Schnittstelle von der zugrunde liegenden basic_streambuf Klasse, durch die basic_ios Basisklasse zugegriffen vorgesehenen Verfahren durchgefhrt. Die einzige nicht-ererbte Datenmember basic_istream, in den meisten Implementierungen ist der Wert durch basic_istream::gcount() zurckgegeben .Original:
The class template
basic_istream provides support for high level input operations on character streams. The supported operations include formatted input (e.g. integer values or whitespace-separated characters and characters strings) and unformatted input (e.g. raw characters and character arrays). This functionality is implemented in terms of the interface provided by the underlying basic_streambuf class, accessed through the basic_ios base class. The only non-inherited data member of basic_istream, in most implementations, is the value returned by basic_istream::gcount().The text has been machine-translated via Google Translate.
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Inheritance diagram
Zwei Spezialisierungen fr gemeinsame Charakter-Typen sind definiert:
Original:
Two specializations for common character types are defined:
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definiert in Header
<istream> | |
Type
Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Definition |
istream
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basic_istream<char>
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wistream
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basic_istream<wchar_t>
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Globale Objekte
Zwei globale basic_istream Aufgaben werden durch die Standard-Bibliothek zur Verfgung gestellt .
Original:
Two global basic_istream objects are provided by the standard library.
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definiert in Header
<iostream> | |
liest aus der Standard-C-Input-Stream stdin
(globales Objekt) Original: The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
Mitglied Typen
Mitglied Typ
Original: Member type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Definition |
char_type
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CharT
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traits_type
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Traits
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int_type
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Traits::int_type
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pos_type
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Traits::pos_type
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off_type
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Traits::off_type
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Member-Funktionen
} Baut das Objekt Original: constructs the object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion) | |
[virtuell] |
zerstrt sich das Objekt Original: destructs the object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (virtuellen ffentlichen Member-Funktion) |
(C++11) |
ersetzt das Puffer-Objekt Original: replaces the buffer object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (geschtzt Member-Funktion) |
Original: Formatted input The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
Extrakte formatierte Daten Original: extracts formatted data The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion) | |
Original: Unformatted input The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| Extrahiere Zeichen (ffentliche Elementfunktion) | |
liest das nchste Zeichen ohne es zu extrahieren Original: reads the next character without extracting it The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion) | |
unextracts ein Zeichen Original: unextracts a character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion) | |
setzt Zeichen in Input-Stream Original: puts character into input stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion) | |
Extrakte Zeichen, bis die gegebene Zeichen gefunden wird Original: extracts characters until the given character is found The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion) | |
Extrakte aus und verwirft Zeichen, bis die gegebene Zeichen gefunden wird Original: extracts and discards characters until the given character is found The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion) | |
extrahiert Blcken von Zeichen Original: extracts blocks of characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion) | |
extrahiert bereits verfgbaren Blcke von Zeichen Original: extracts already available blocks of characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion) | |
gibt die Anzahl der Zeichen, die letzten unformatierte Eingabe-Operation extrahiert Original: returns number of characters extracted by last unformatted input operation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion) | |
Original: Positioning The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
liefert den Eingang Stellungsanzeige Original: returns the input position indicator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion) | |
| sets the input position indicator (ffentliche Elementfunktion) | |
Original: Miscellaneous The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
synchronisiert mit dem zugrunde liegenden Speicher Original: synchronizes with the underlying storage device The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion) | |
(C++11) |
Swaps Strom-Objekten, mit Ausnahme der zugehrigen Puffer Original: swaps stream objects, except for the associated buffer The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (geschtzt Member-Funktion) |
Mitglied Klassen
| implements basic logic for preparation of the stream for input operations (ffentlichen Member der Klasse) | |
Non-Member-Funktionen
extrahiert Zeichen und Zeichen-Arrays Original: extracts characters and character arrays The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktions-Template) | |
Inherited from std::basic_ios
Member types
Mitglied Typ
Original: Member type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Definition |
char_type
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CharT
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traits_type
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Traits
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int_type
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Traits::int_type
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pos_type
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Traits::pos_type
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off_type
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Traits::off_type
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Original: State functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
prft, ob keine Fehler aufgetreten, dh I / O-Operationen zur Verfgung stehen Original: checks if no error has occurred i.e. I/O operations are available The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::basic_ios)
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prft, ob am Ende der Datei erreicht wurde Original: checks if end-of-file has been reached The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::basic_ios)
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prft, ob ein behebbarer Fehler aufgetreten Original: checks if a recoverable error has occurred The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::basic_ios)
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prft, ob ein nicht behebbarer Fehler aufgetreten ist Original: checks if a non-recoverable error has occurred The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::basic_ios)
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prft, ob ein Fehler aufgetreten ist (Synonym fail()) Original: checks if an error has occurred (synonym of fail()) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::basic_ios)
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(bis C + +11) (seit C++11) |
berprft, ob kein Fehler aufgetreten ist (Synonym !fail())Original: checks if no error has occurred (synonym of !fail())The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::basic_ios)
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| gibt Statusflaggen (ffentliche Elementfunktion of std::basic_ios)
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setzt Staatsflaggen Original: sets state flags The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::basic_ios)
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lscht Fehler und eof Fahnen Original: clears error and eof flags The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::basic_ios)
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Original: Formatting The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
Kopien Formatierungsinformationen Original: copies formatting information The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::basic_ios)
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verwaltet die Fllzeichen Original: manages the fill character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::basic_ios)
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Original: Miscellaneous The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| manages exception mask (ffentliche Elementfunktion of std::basic_ios)
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Setzt die Locale Original: sets the locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::basic_ios)
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verwaltet verbundenen Strom-Puffer Original: manages associated stream buffer The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::basic_ios)
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verwaltet gebunden Stream Original: manages tied stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::basic_ios)
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verengt Zeichen Original: narrows characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::basic_ios)
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| widens characters (ffentliche Elementfunktion of std::basic_ios)
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Inherited from std::ios_base
Member functions
Original: Formatting The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
verwaltet Format Fahnen Original: manages format flags The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::ios_base)
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setzt bestimmten Format Flagge Original: sets specific format flag The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::ios_base)
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| clears specific format flag (ffentliche Elementfunktion of std::ios_base)
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verwaltet Nachkommastellen von Fliekomma-Operationen Original: manages decimal precision of floating point operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::ios_base)
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| manages field width (ffentliche Elementfunktion of std::ios_base)
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Original: Locales The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
setzt locale Original: sets locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::ios_base)
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kehrt momentanen Locale Original: returns current locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::ios_base)
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Original: Internal extensible array The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
[statisch] |
kehrt ein Programm-weit eindeutige Zahl, die sicher als Index PWord () und iword () verwenden Original: returns a program-wide unique integer that is safe to use as index to pword() and iword() The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (public static Elementfunktion of std::ios_base)
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die Gre der privaten Lagerhaltung bei Bedarf und Zugang zum long Element am angegebenen IndexOriginal: resizes the private storage if necessary and access to the long element at the given indexThe text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::ios_base)
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die Gre der privaten Lagerhaltung bei Bedarf und Zugang zum void* Element am angegebenen IndexOriginal: resizes the private storage if necessary and access to the void* element at the given indexThe text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentliche Elementfunktion of std::ios_base)
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Original: Miscellaneous The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| registers event callback function (ffentliche Elementfunktion of std::ios_base)
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[statisch] |
legt fest, ob C + + und C IO Libraries interoperabel sind Original: sets whether C++ and C IO libraries are interoperable The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (public static Elementfunktion of std::ios_base)
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Original: Member classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
Stream Ausnahme Original: stream exception The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentlichen Member der Klasse of std::ios_base)
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initialisiert Standard-Stream-Objekten Original: initializes standard stream objects The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (ffentlichen Member der Klasse of std::ios_base)
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Original: Member types and constants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Type
Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Explanation | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Stream offenen Modus-Typ
Die folgenden Konstanten sind ebenfalls definiert:
Original: stream open mode type
The following constants are also defined:
The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (typedef) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Formatierung flags Typ
Die folgenden Konstanten sind ebenfalls definiert:
Original: formatting flags type
The following constants are also defined:
The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (typedef) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Stand der Stream-Typ
Die folgenden Konstanten sind ebenfalls definiert:
Original: state of the stream type
The following constants are also defined:
The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (typedef) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| seeking direction type
The following constants are also defined:
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legt Event-Typ Original: specifies event type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (enum) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Callback-Funktion aus Original: callback function type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (typedef) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||