Namensräume
Varianten

    std::boolalpha, std::noboolalpha

    Aus cppreference.com
    < cpp‎ | io‎ | manip

    This page has been machine-translated from the English version of the wiki using Google Translate.

    The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here.

    Click here for the English version of this page

     
    C++
     
    Input / Output-Bibliothek
    I / O-Manipulatoren
    C-style I / O
    Puffern
    Original:
    Buffers
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    basic_streambuf
    basic_filebuf
    basic_stringbuf
    strstreambuf(veraltet)
    Streams
    Original:
    Streams
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Abstraktionen
    Original:
    Abstractions
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    ios_base
    basic_ios
    basic_istream
    basic_ostream
    basic_iostream
    Datei-I / O
    Original:
    File I/O
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    basic_ifstream
    basic_ofstream
    basic_fstream
    String I / O
    Original:
    String I/O
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    basic_istringstream
    basic_ostringstream
    basic_stringstream
    Array I / O
    Original:
    Array I/O
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    istrstream(veraltet)
    ostrstream(veraltet)
    strstream(veraltet)
    Types
    Original:
    Types
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    streamoff
    streamsize
    fpos
    Fehler Kategorie Schnittstelle
    Original:
    Error category interface
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    iostream_category(C++11)
    io_errc(C++11)
     
    Eingang / Ausgang Manipulatoren
    Gleitkomma-Formatierung
    Original:
    Floating-point formatting
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Integer-Formatierung
    Original:
    Integer formatting
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Boolean Formatierung
    Original:
    Boolean formatting
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    boolalpha
    noboolalpha
    Feldbreite und fill Kontrolle
    Original:
    Field width and fill control
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Andere Formatierungen
    Original:
    Other formatting
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Whitespace-Verarbeitung
    Original:
    Whitespace processing
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Output Spülung
    Original:
    Output flushing
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Statusflags Manipulation
    Original:
    Status flags manipulation
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Zeit und Geld I / O
    Original:
    Time and money I/O
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    get_money(C++11)
    get_time(C++11)
    put_money(C++11)
    put_time(C++11)
     
    definiert in Header <ios>
    std::ios_base& boolalpha(std::ios_base& str );
    		 (1)
    std::ios_base& noboolalpha(std::ios_base& str );
    		 (2)
    1)
    ermöglicht die boolalpha Flagge in den Strom str, als ob durch den Aufruf str.setf(std::ios_base::boolalpha)
    Original:
    enables the boolalpha flag in the stream str as if by calling str.setf(std::ios_base::boolalpha)
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    2)
    deaktiviert die boolalpha Flagge in den Strom str, als ob durch den Aufruf str.unsetf(std::ios_base::boolalpha)
    Original:
    disables the boolalpha flag in the stream str as if by calling str.unsetf(std::ios_base::boolalpha)
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    std::boolalpha wird ein I / O-Manipulator, so kann es mit einem Expressionsvektor wie out << std::boolalpha für jede out vom Typ std::basic_ostream oder mit einem Expressionsvektor wie in >> std::boolalpha für jede in vom Typ std::basic_istream aufgerufen werden .
    Original:
    std::boolalpha is an I/O manipulator, so it may be called with an expression such as out << std::boolalpha for any out of type std::basic_ostream or with an expression such as in >> std::boolalpha for any in of type std::basic_istream.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Inhaltsverzeichnis

    [Bearbeiten]Parameter

    str -
    Verweisen auf I / O-Strom
    Original:
    reference to I/O stream
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    [Bearbeiten]Rückgabewert

    str (Verweis auf den Stream nach Manipulation)
    Original:
    str (reference to the stream after manipulation)
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    [Bearbeiten]Beispiel

    #include <sstream>#include <locale>#include <iostream>int main(){// boolalpha outputstd::cout<< std::boolalpha<<"boolalpha true: "<<true<<'\n'<<"boolalpha false: "<<false<<'\n';std::cout<< std::noboolalpha<<"noboolalpha true: "<<true<<'\n'<<"noboolalpha false: "<<false<<'\n';// booalpha parsebool b1, b2;std::istringstream is("true false"); is >> std::boolalpha>> b1 >> b2;std::cout<<'\"'<< is.str()<<"\" parsed as "<< b1 <<' '<< b2 <<'\n';}

    Output: 

    boolalpha true: true boolalpha false: false noboolalpha true: 1 noboolalpha false: 0 "true false" parsed as 1 0

    [Bearbeiten]Siehe auch

    Vorlage:cpp/locale/numpunct/dsc do truenameVorlage:cpp/locale/numpunct/dsc do falsename
    löscht die angegebene ios_base Fahnen
    Original:
    clears the specified ios_base flags
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    (Funktion)[edit]
    Legt die angegebene ios_base Fahnen
    Original:
    sets the specified ios_base flags
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    (Funktion)[edit]
    Von „https://de.cppreference.com/mwiki/index.php?title=cpp/io/manip/boolalpha&oldid=26968“
    close