(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> - cppreference.com">(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> - cppreference.com">
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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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      <metanoindex/>

       
      C++
       
      Biblioteca localizações
      Localidades e facetas
      Original:
      Locales and facets
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      Classificação de caracteres
      Original:
      Character classification
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      Conversões
      Original:
      Conversions
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      Facet classes base da categoria
      Original:
      Facet category base classes
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      Categorias faceta
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      Facet categories
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      Específicos da localidade facetas
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      Locale-specific facets
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      Facetas de conversão de código
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      Code conversion facets
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      (C++11)
      (C++11)
      C localidade
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      C locale
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      <tbody> </tbody>
      Definido no cabeçalho <locale>
      template< class charT > charT tolower( charT ch, const locale& loc );
      Converte o ch personagem para minúsculas se possível, usando as regras de conversão especificados pela faceta determinada localidade de std::ctype.
      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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      Parâmetros

      ch -
      personagem
      Original:
      character
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      loc -
      localidade
      Original:
      locale
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      Valor de retorno

      Retorna a forma de minúsculas ch se está listado no local, caso contrário retorna ch inalterada.
      Original:
      Returns the lowercase form of ch if one is listed in the locale, otherwise return ch unchanged.
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      Notas

      Apenas 01:01 mapeamento de caracteres pode ser realizada por esta função, por exemplo, a letra maiúscula grega "Σ" tem duas formas minúsculas, dependendo da posição em uma palavra: "σ" e "ς". Uma chamada para std::tolower não pode ser utilizado para obter a forma correcta minúsculas neste 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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      Possível implementação

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

      Exemplo

      Esta seção está incompleta
      Motivo: sem exemplo

      Veja também
      converte um caractere em maiúsculas usando os aspectos ctype de uma localidade
      Original:
      converts a character to uppercase using the ctype facet of a locale
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      (modelo de função) [edit]
      converte um caractere para minúsculo
      Original:
      converts a character to lowercase
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      (função) [edit]
      converte um caractere largo para minúsculas
      Original:
      converts a wide character to lowercase
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      (função) [edit]