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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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< cpp‎ | locale

 
 
Lokalisierungen Bibliothek
Locales und Facetten
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Locales and facets
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locale
Buchstaben-Klassifikation
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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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Defined 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.

Inhaltsverzeichnis

[Bearbeiten] Parameter

ch -
Charakter
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character
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loc -
locale
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locale
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[Bearbeiten] Rückgabewert

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

[Bearbeiten] 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);
}

[Bearbeiten] Beispiel

[Bearbeiten] 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
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checks if a wide character is a digit
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(Funktion) [edit]