Espacios de nombres
Variantes
Acciones

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>

De cppreference.com
< cpp‎ | locale

 
 
Localizaciones biblioteca
Locales y facetas
Original:
Locales and facets
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
locale
Carácter clasificación
Original:
Character classification
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Conversiones
Original:
Conversions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Facet clases categoría base
Original:
Facet category base classes
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Categorías faceta
Original:
Facet categories
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Específico de la localidad facetas
Original:
Locale-specific facets
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Facetas código de conversión
Original:
Code conversion facets
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
codecvt_utf8(C++11)
codecvt_utf16(C++11)
C locale
Original:
C locale
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
 
Defined in header <locale>
template< class charT >
bool isalpha( charT ch, const locale& loc );
Comprueba si el carácter dado clasificado como un carácter alfabético por faceta std::ctype la configuración regional determinada .
Original:
Checks if the given character classified as an alphabetic character by the given locale's std::ctype facet.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

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

Devoluciones true si el personaje está clasificado como alfabético, false de otra manera .
Original:
Returns true if the character is classified as alphabetic, false otherwise.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[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

Muestra el uso de isalpha () con diferentes configuraciones regionales (OS-específico) .
Original:
Demonstrates the use of isalpha() with different locales (OS-specific).
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

#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';
}

Output:

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) [edit]
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) [edit]