std::basic_ifstream – cppreference.com
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Das Klassen-Template basic_ifstream implementiert Hochpegeleingang Operationen auf dateibasierte Streams. Es lässt sich eine Datei-basierte streambuffer (std::basic_filebuf) mit dem High-Level-Schnittstelle (std::basic_istream) .
Original:
The class template basic_ifstream implements high-level input operations on file based streams. It interfaces a file-based streambuffer (std::basic_filebuf) with the high-level interface of (std::basic_istream).
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Eine typische Implementierung std::basic_ifstream hält nur ein nicht-abgeleiteten Daten Mitglied: eine Instanz std::basic_filebuf<CharT, Traits> .
Original:
A typical implementation of std::basic_ifstream holds only one non-derived data member: an instance of std::basic_filebuf<CharT, Traits>.
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Inheritance diagram
Zwei Spezialisierungen für gemeinsame Charakter-Typen sind ebenfalls definiert:
Original:
Two specializations for common character types are also defined:
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definiert in Header | |
Type Original: Type The text has been machine-translated via Google Translate. |
Definition |
ifstream
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basic_ifstream<char>
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wifstream
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basic_ifstream<wchar_t>
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Mitglied Typen
Mitglied Typ Original: Member type The text has been machine-translated via Google Translate. |
Definition |
char_type
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CharT[edit]
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traits_type
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Traits[edit]
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int_type
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Traits::int_type[edit]
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pos_type
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Traits::pos_type[edit]
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off_type
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Traits::off_type[edit]
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Member-Funktionen
baut die Datei-Stream Original: constructs the file stream The text has been machine-translated via Google Translate. (öffentliche Elementfunktion) [edit] | |
(destructor) [virtuell] (implizit deklariert) |
destructs the basic_ifstream and the associated buffer, closes the file (virtuellen öffentlichen Member-Funktion) [edit] |
(C++11) |
verschiebt die Datei-Stream Original: moves the file stream The text has been machine-translated via Google Translate. (öffentliche Elementfunktion) [edit] |
(C++11) |
Swaps zwei Datei-Streams Original: swaps two file streams The text has been machine-translated via Google Translate. (öffentliche Elementfunktion) [edit] |
liefert die zugrunde liegenden Rohdaten-Device-Objekt Original: returns the underlying raw file device object The text has been machine-translated via Google Translate. (öffentliche Elementfunktion) [edit] | |
Datei-Operationen Original: File operations The text has been machine-translated via Google Translate. | |
prüft, ob der Stream eine zugehörige Datei hat Original: checks if the stream has an associated file The text has been machine-translated via Google Translate. (öffentliche Elementfunktion) [edit] | |
öffnet eine Datei und ordnet sie mit dem Strom Original: opens a file and associates it with the stream The text has been machine-translated via Google Translate. (öffentliche Elementfunktion) [edit] | |
schließt die zugehörige Datei Original: closes the associated file The text has been machine-translated via Google Translate. (öffentliche Elementfunktion) [edit] | |
Non-Member-Funktionen
spezialisiert die std::swap Algorithmus Original: specializes the std::swap algorithm The text has been machine-translated via Google Translate. (Funktions-Template) [edit] | |
Inherited from std::basic_istream
Member functions
}
Formatierte Eingabe Original: Formatted input The text has been machine-translated via Google Translate. | |
Extrakte formatierte Daten Original: extracts formatted data The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_istream) [edit]
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Unformatierte Eingabe Original: Unformatted input The text has been machine-translated via Google Translate. | |
| Extrahiere Zeichen (öffentliche Elementfunktion of std::basic_istream) [edit]
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liest das nächste Zeichen ohne es zu extrahieren Original: reads the next character without extracting it The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_istream) [edit]
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unextracts ein Zeichen Original: unextracts a character The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_istream) [edit]
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setzt Zeichen in Input-Stream Original: puts character into input stream The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_istream) [edit]
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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. (öffentliche Elementfunktion of std::basic_istream) [edit]
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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. (öffentliche Elementfunktion of std::basic_istream) [edit]
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extrahiert Blöcken von Zeichen Original: extracts blocks of characters The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_istream) [edit]
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extrahiert bereits verfügbaren Blöcke von Zeichen Original: extracts already available blocks of characters The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_istream) [edit]
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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. (öffentliche Elementfunktion of std::basic_istream) [edit]
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Positionierung Original: Positioning The text has been machine-translated via Google Translate. | |
liefert den Eingang Stellungsanzeige Original: returns the input position indicator The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_istream) [edit]
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| sets the input position indicator (öffentliche Elementfunktion of std::basic_istream) [edit]
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Verschiedenes Original: Miscellaneous The text has been machine-translated via Google Translate. | |
synchronisiert mit dem zugrunde liegenden Speicher Original: synchronizes with the underlying storage device The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_istream) [edit]
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Member classes
| implements basic logic for preparation of the stream for input operations (öffentlichen Member der Klasse of std::basic_istream) [edit]
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Inherited from std::basic_ios
Member types
Mitglied Typ Original: Member type The text has been machine-translated via Google Translate. |
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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}
Funktionen des Staates Original: State functions The text has been machine-translated via Google Translate. | |
prüft, ob keine Fehler aufgetreten, dh I / O-Operationen zur Verfügung stehen Original: checks if no error has occurred i.e. I/O operations are available The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_ios) [edit]
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prüft, 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. (öffentliche Elementfunktion of std::basic_ios) [edit]
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prüft, ob ein behebbarer Fehler aufgetreten Original: checks if a recoverable error has occurred The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_ios) [edit]
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prüft, 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. (öffentliche Elementfunktion of std::basic_ios) [edit]
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prüft, ob ein Fehler aufgetreten ist (Synonym fail()) Original: The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_ios) [edit]
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(bis C + +11) |
überprüft, ob kein Fehler aufgetreten ist (Synonym Original: checks if no error has occurred (synonym of The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_ios) [edit]
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| gibt Statusflaggen (öffentliche Elementfunktion of std::basic_ios) [edit]
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setzt Staatsflaggen Original: sets state flags The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_ios) [edit]
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löscht Fehler und eof Fahnen Original: clears error and eof flags The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_ios) [edit]
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Formatierung Original: Formatting The text has been machine-translated via Google Translate. | |
Kopien Formatierungsinformationen Original: copies formatting information The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_ios) [edit]
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verwaltet die Füllzeichen Original: manages the fill character The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_ios) [edit]
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Verschiedenes Original: Miscellaneous The text has been machine-translated via Google Translate. | |
| manages exception mask (öffentliche Elementfunktion of std::basic_ios) [edit]
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Setzt die Locale Original: sets the locale The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_ios) [edit]
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verwaltet verbundenen Strom-Puffer Original: manages associated stream buffer The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_ios) [edit]
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verwaltet gebunden Stream Original: manages tied stream The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_ios) [edit]
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verengt Zeichen Original: narrows characters The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::basic_ios) [edit]
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| widens characters (öffentliche Elementfunktion of std::basic_ios) [edit]
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Inherited from std::ios_base
Member functions
Formatierung Original: Formatting The text has been machine-translated via Google Translate. | |
verwaltet Format Fahnen Original: manages format flags The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::ios_base) [edit]
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setzt bestimmten Format Flagge Original: sets specific format flag The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::ios_base) [edit]
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| clears specific format flag (öffentliche Elementfunktion of std::ios_base) [edit]
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verwaltet Nachkommastellen von Fließkomma-Operationen Original: manages decimal precision of floating point operations The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::ios_base) [edit]
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| manages field width (öffentliche Elementfunktion of std::ios_base) [edit]
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Locales Original: Locales The text has been machine-translated via Google Translate. | |
setzt locale Original: sets locale The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::ios_base) [edit]
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kehrt momentanen Locale Original: returns current locale The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::ios_base) [edit]
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Interne erweiterbare Array Original: Internal extensible array The text has been machine-translated via Google Translate. | |
[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. (public static Elementfunktion of std::ios_base) [edit]
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die Größe der privaten Lagerhaltung bei Bedarf und Zugang zum Original: resizes the private storage if necessary and access to the The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::ios_base) [edit]
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die Größe der privaten Lagerhaltung bei Bedarf und Zugang zum Original: resizes the private storage if necessary and access to the The text has been machine-translated via Google Translate. (öffentliche Elementfunktion of std::ios_base) [edit]
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Verschiedenes Original: Miscellaneous The text has been machine-translated via Google Translate. | |
| registers event callback function (öffentliche Elementfunktion of std::ios_base) [edit]
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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. (public static Elementfunktion of std::ios_base) [edit]
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Mitglied Klassen Original: Member classes The text has been machine-translated via Google Translate. | |
Stream Ausnahme Original: stream exception The text has been machine-translated via Google Translate. (öffentlichen Member der Klasse of std::ios_base) [edit]
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initialisiert Standard-Stream-Objekten Original: initializes standard stream objects The text has been machine-translated via Google Translate. (öffentlichen Member der Klasse of std::ios_base) [edit]
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Mitglied Typen und Konstanten Original: Member types and constants The text has been machine-translated via Google Translate. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Type Original: Type The text has been machine-translated via Google Translate. |
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Stream offenen Modus-Typ Die folgenden Konstanten sind ebenfalls definiert:
Original: stream open mode type The following constants are also defined:
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Formatierung flags Typ Die folgenden Konstanten sind ebenfalls definiert:
Original: formatting flags type The following constants are also defined:
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Stand der Stream-Typ Die folgenden Konstanten sind ebenfalls definiert:
Original: state of the stream type The following constants are also defined:
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| 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. (enum) [edit] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Callback-Funktion aus Original: callback function type The text has been machine-translated via Google Translate. (typedef) [edit] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||