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      std::setfill

      De cppreference.com
      < cpp | io | manip

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      <metanoindex/>

       
      C++
       
      De entrada / saída da biblioteca
      I / O manipuladores
      C estilo de I / O
      Buffers
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      Buffers
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      (obsoleta)
      Streams
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      Streams
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      (C++11)
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      Entrada / saída manipuladores
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      Boolean formatting
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      Largura do campo e controle de preenchimento
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      Field width and fill control
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      Outra formatação
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      (C++11)
      (C++11)
      (C++11)
      (C++11)
       
      <tbody> </tbody>
      Definido no cabeçalho <iomanip>
      template< class CharT > /*unspecified*/ setfill( CharT c );
      Quando utilizado num out << setfill(c) expressão define o caracter de preenchimento do out fluxo para c.
      Original:
      When used in an expression out << setfill(c) sets the fill character of the stream out to c.
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      Parâmetros

      c -
      novo valor para o caractere de preenchimento
      Original:
      new value for the fill character
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      Valor de retorno

      Devolve um objecto de tipo não especificado de tal forma que se out é o nome de um fluxo de saída de std::basic_ostream<CharT, Traits> tipo, então a expressão out << setfill(n) se comporta como se o seguinte código foi executado:
      Original:
      Returns an object of unspecified type such that if out is the name of an output stream of type std::basic_ostream<CharT, Traits>, then the expression out << setfill(n) behaves as if the following code was executed:
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      out.fill(n);

      Exemplo

      #include <iostream>
#include <iomanip>
int main()
{
    std::cout << "default fill: " << std::setw(10) << 42 << '\n'
              << "setfill('*'): " << std::setfill('*')
                                  << std::setw(10) << 42 << '\n';
}

      Saída: 

      default fill:         42
setfill('*'): ********42

      Veja também
      gerencia o caractere de preenchimento
      Original:
      manages the fill character
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      (of std::basic_ios função pública membro) [edit]
      define o posicionamento dos caracteres de preenchimento
      Original:
      sets the placement of fill characters
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      (função) [edit]
      muda a largura da próxima entrada / saída de campo
      Original:
      changes the width of the next input/output field
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      (função) [edit]