(Std :: locale)<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">(std::locale)</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div> – cppreference.com">(Std :: locale)<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">(std::locale)</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div> – cppreference.com">
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    std::isdigit<div class="t-tr-text">(Std :: locale)<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">(std::locale)</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div>

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    <metanoindex/>

     
    C++
     
    Lokalisierungen Bibliothek
    Locales und Facetten
    Original:
    Locales and facets
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    locale
    Buchstaben-Klassifikation
    Original:
    Character classification
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    Conversions
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    Conversions
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    Facet Kategorie Basisklassen
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    Facet category base classes
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    Facet Kategorien
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    Facet categories
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    Locale-spezifische Facetten
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    Locale-specific facets
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    Code-Konvertierung Facetten
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    Code conversion facets
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    codecvt_utf8(C++11)
    codecvt_utf16(C++11)
    C locale
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    C locale
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    <tbody> </tbody>
    definiert in Header <locale>
    template< class charT > bool isdigit( charT ch, const locale& loc );

    Checks if the given character is classified as a digit by the given locale's std::ctype facet.

    Parameter

    ch -
    Charakter
    Original:
    character
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    loc -
    locale
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    locale
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    Rückgabewert

    Returns true if the character is classified as a digit, false otherwise.

    Mögliche Implementierung

    template< class charT >
bool isdigit( charT ch, const std::locale& loc ) {
    return std::use_facet<std::ctype<charT>>(loc).is(std::ctype_base::digit, ch);
}

    Beispiel

    This section is incomplete
    Reason: no example

    Siehe auch
    prüft, ob ein Zeichen eine Ziffer ist
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    checks if a character is a digit
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    (Funktion) [edit]
    prüft, ob eine breite Zeichen ist eine Ziffer
    Original:
    checks if a wide character is a digit
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    (Funktion) [edit]