std::isalpha<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>
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template< class charT > bool isalpha( charT ch, const locale& loc ); |
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Contenido |
[editar] 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. |
[editar] Valor de retorno
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[editar] Posible implementación
template< class charT > bool isalpha( charT ch, const std::locale& loc ) { return std::use_facet<std::ctype<charT>>(loc).is(std::ctype_base::alpha, ch); } |
[editar] Ejemplo
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#include <iostream> #include <locale> int main() { const wchar_t c = L'\u042f'; // cyrillic capital letter ya std::locale loc1("C"); std::cout << "isalpha('Я', C locale) returned " << std::boolalpha << std::isalpha(c, loc1) << '\n'; std::locale loc2("en_US.UTF8"); std::cout << "isalpha('Я', Unicode locale) returned " << std::boolalpha << std::isalpha(c, loc2) << '\n'; }
Salida:
isalpha('Я', C locale) returned false isalpha('Я', Unicode locale) returned true
[editar] Ver también
Comprueba si un carácter es alfabético Original: checks if a character is alphabetic The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
Comprueba si un carácter ancho es alfabético Original: checks if a wide character is alphabetic The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) |