std::islower<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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Definido en el archivo de encabezado `<locale>`
`template< class charT > bool islower( charT ch, const locale& loc );`

Comprueba si el carácter dado clasificada como una letra minúscula faceta std::ctype por la configuración regional determinada .

Original:

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

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Parámetros

ch	-	carácter 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.

Valor de retorno

Devoluciones true si el personaje está clasificado como minúsculas, por lo demás false .

Original:

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

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Posible implementación

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);
}

Ejemplo

Muestra el uso de islower () con diferentes configuraciones regionales (OS-específico) .

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';
}

Salida:

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

Ver también

	Comprueba si un carácter en minúsculas 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. (función) [editar]
	Comprueba si un carácter ancho es minúscula 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. (función) [editar]