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 no cabeçalho `<locale>`

`template< class charT > bool islower( charT ch, const locale& loc );`

Verifica se o caráter dado classificado como um caractere alfabético minúsculo pela faceta determinada localidade de std::ctype.

Original:

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

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Parâmetros

ch	-	personagem 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	-	localidade 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

Retorna true se o personagem é classificado como minúsculas, caso contrário false.

Original:

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

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Possível implementação

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);
}

Exemplo

Demonstra o uso de islower () com diferentes localidades (OS-específica) .

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';
}

Saída:

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

Veja também


	checa se o personagem é minúscula 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. (função) [edit]

	verifica se um caractere largo é 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. (função) [edit]