MachineTranslations here] for instructions.</div></div></div></div></div> — cppreference.com

De cppreference.com

Déclaré dans l'en-tête `<locale>`
`template< class charT > bool islower( charT ch, const locale& loc );`

Vérifie si le caractère donné classée comme une lettre minuscule par facette std::ctype l'endroit donné de .

Original:

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

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Paramètres

ch	-	caractère Original: character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
loc	-	locale Original: locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Retourne la valeur

Retours true si le personnage est classé comme minuscules, false autrement .

Original:

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

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Mise en œuvre possible

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

Exemple

Illustre l'utilisation de islower () avec différents paramètres régionaux (spécifiques à l'OS) .

Original:

Demonstrates the use of islower() with different locales (OS-specific).

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#include <iostream>
#include <locale>
int main()
{
    const wchar_t c = L'\u03c0'; // greek small letter pi
 
    std::locale loc1("C");
    std::cout << "islower('π', C locale) returned "
               << std::boolalpha << std::islower(c, loc1) << '\n';
 
    std::locale loc2("en_US.UTF8");
    std::cout << "islower('π', Unicode locale) returned "
              << std::boolalpha << std::islower(c, loc2) << '\n';
}

Résultat :

islower('π', C locale) returned false
islower('π', Unicode locale) returned true

Voir aussi


	vérifie si un caractère est en minuscule Original: checks if a character is lowercase The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction) [edit]

	vérifie si un caractère large est en minuscules Original: checks if a wide character is lowercase The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction) [edit]