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      std::system_error::system_error

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      <metanoindex/>

       
      C++
       
      Biblioteca de utilitários
      Digite apoio (basic types, RTTI, type traits)
      Gerenciamento de memória dinâmica
      De tratamento de erros
      Utilidades do programa
      Variadic funções
      Data e hora
      Objetos de função
      (C++11)
      (C++11)
      Os operadores relacionais
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      Relational operators
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      rel_ops::operator!=
      rel_ops::operator>
      rel_ops::operator<=
      rel_ops::operator>=
      Pares e tuplas
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      Pairs and tuples
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      (C++11)
      (C++11)
      (C++11)
      Troque, avançar e avançar
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      Swap, forward and move
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      (C++11)
      (C++11)
      (C++11)
      (C++11)
       
      De tratamento de erros
      Manipulação de exceção
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      Exception handling
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      (C++11)
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      Manipulação de falhas de exceção
      Original:
      Exception handling failures
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      (C++11)
      (obsoleta)
      (obsoleta)
      (C++11)(obsoleta)
      (obsoleta)
      Categorias de exceção
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      Exception categories
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      Códigos de erro
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      Error codes
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      Códigos de erro
      Afirmações
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      Assertions
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      instalação system_error
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      system_error facility
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      (C++11)
      (C++11)
      (C++11)
      (C++11)
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      (C++11)
       
      std::system_error
      Funções de membro
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      Member functions
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      system_error::system_error
      system_error::code
      system_error::what
       
      <tbody> </tbody>
      system_error( std::error_code ec );
      		 (1) (desde C++11)
      system_error( std::error_code ec, const std::string& what_arg );
      		 (2) (desde C++11)
      system_error( std::error_code ec, const char* what_arg );
      		 (2) (desde C++11)
      system_error( int ev, const std::error_category& ecat
      		 (3) (desde C++11)
      system_error( int ev, const std::error_category& ecat, const std::string& what_arg);
      		 (4) (desde C++11)
      system_error( int ev, const std::error_category& ecat, const char* what_arg);
      		 (4) (desde C++11)
      Constrói objeto de erro novo sistema.
      Original:
      Constructs new system error object.
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      1)
      Construções com ec código de erro
      Original:
      Constructs with error code ec
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      2)
      Construções com ec código de erro e what_arg corda explicação. A seqüência de caracteres retornado por what() é garantida para conter what_arg.
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      Constructs with error code ec and explanation string what_arg. The string returned by what() is guaranteed to contain what_arg.
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      3)
      Construções com ev subjacente o código de erro e categoria de erro associada ecat.
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      Constructs with underlying error code ev and associated error category ecat.
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      4)
      Construções com ev subjacente código de erro, ecat categoria associada erro e what_arg corda explicativo. A seqüência de caracteres retornado por what() é garantida para conter what_arg.
      Original:
      Constructs with underlying error code ev, associated error category ecat and explanatory string what_arg. The string returned by what() is guaranteed to contain what_arg.
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      Parâmetros

      ec -
      código de erro
      Original:
      error code
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      ev -
      código de erro na codificação de base
      Original:
      error code in base encoding
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      ecat -
      a categoria de erro
      Original:
      the category of error
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      what_arg -
      cadeia explicativa
      Original:
      explanatory string
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      Exemplo

      Demonstra como criar uma exceção system_error de um valor de errno
      Original:
      Demonstrates how to create a system_error exception from a errno value
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      #include <iostream>
#include <system_error>

int main()
{
    try
    {
        throw std::system_error(EDOM, std::system_category());
    }
    catch (const std::system_error& error)
    {
        std::cout << "Error: " << error.code()
                  << " - " << error.code().message() << '\n';
    }
}

      Saída: 

      Error: system:33 - Numerical argument out of domain