islower - cppreference.com
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      islower

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      < c | string | byte

      <metanoindex/>

       
      C
       
      Biblioteca cordas
       
      Cordas de terminação nula de bytes
      Funções
      Original:
      Functions
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      Manipulação personagem
      Original:
      Character manipulation
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      Conversões para formatos numéricos
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      Conversions to numeric formats
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      Manipulação de cadeia
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      String manipulation
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      Exame String
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      String examination
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      Manipulação de memória
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      Memory manipulation
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      Diversos
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      Miscellaneous
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      <tbody> </tbody>
      Definido no cabeçalho <ctype.h>
      int islower( int ch );
      Verifica se o caráter dado é classificado como um caractere minúsculo de acordo com a localidade C atual. No padrão local "C", islower retorna verdadeiro apenas para as letras minúsculas (abcdefghijklmnopqrstuvwxyz).
      Original:
      Checks if the given character is classified as a lowercase character according to the current C locale. In the default "C" locale, islower returns true only for the lowercase letters (abcdefghijklmnopqrstuvwxyz).
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      Se islower retornos true, é garantido que iscntrl, isdigit, ispunct, e isspace retorno false para o mesmo personagem na localidade C mesmo.
      Original:
      If islower returns true, it is guaranteed that iscntrl, isdigit, ispunct, and isspace return false for the same character in the same C locale.
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      Parâmetros

      ch -
      personagem
      Original:
      character
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      Valor de retorno

      Valor diferente de zero (true) se o personagem é uma letra minúscula, 0 (false) de outra forma.
      Original:
      Non-zero value (true) if the character is a lowercase letter, 0 (false) otherwise.
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      Veja também
      verifica se um caractere largo é um personagem minúsculas
      Original:
      checks if a wide character is an lowercase character
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      (função) [edit]
      C++ documentation for islower