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std::tolower<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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< cpp‎ | locale

 
 
Localizaciones biblioteca
Locales y facetas
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Locales and facets
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locale
Carácter clasificación
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Character classification
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Conversiones
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Conversions
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toupper
tolower
Facet clases categoría base
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Facet category base classes
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Categorías faceta
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Facet categories
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Específico de la localidad facetas
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Locale-specific facets
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Facetas código de conversión
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Code conversion facets
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codecvt_utf8(C++11)
codecvt_utf16(C++11)
C locale
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C locale
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Defined in header <locale>
template< class charT >
charT tolower( charT ch, const locale& loc );
Convierte el ch carácter a minúscula, si es posible, utilizando las reglas de conversión especificados por faceta std::ctype la configuración regional determinada .
Original:
Converts the character ch to lowercase if possible, using the conversion rules specified by the given locale's std::ctype facet.
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Contenido

[editar] Parámetros

ch -
carácter
Original:
character
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loc -
locale
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locale
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[editar] Valor de retorno

Devuelve la forma minúscula de ch si uno está en la lista en el entorno local, de lo contrario volverá ch sin cambios .
Original:
Returns the lowercase form of ch if one is listed in the locale, otherwise return ch unchanged.
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[editar] Notas

Sólo 01:01 asignación de caracteres se puede realizar por esta función, por ejemplo, la letra mayúscula griega "Σ" tiene dos formas minúsculas, dependiendo de la posición en una palabra: 'σ' y 'ς'. Una llamada a std::tolower no se puede utilizar para obtener la forma correcta minúsculas en este caso .
Original:
Only 1:1 character mapping can be performed by this function, e.g. the Greek uppercase letter 'Σ' has two lowercase forms, depending on the position in a word: 'σ' and 'ς'. A call to std::tolower cannot be used to obtain the correct lowercase form in this case.
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[editar] Posible implementación

template< class charT >
charT tolower( charT ch, const std::locale& loc ) {
    return std::use_facet<std::ctype<charT>>(loc).tolower(ch);
}

[editar] Ejemplo

[editar] Ver también

convierte un carácter a mayúsculas utilizando la faceta ctype de una localidad
Original:
converts a character to uppercase using the ctype facet of a locale
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(función de plantilla) [edit]
convierte un carácter en minúsculas
Original:
converts a character to lowercase
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(función) [edit]
convierte una carácter ancho a minúsculas
Original:
converts a wide character to lowercase
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(función) [edit]