std::iostream_category
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<tbody> </tbody>| Definido no cabeçalho <ios>
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const std::error_category& iostream_category(); |
(desde C++11) | |
Obtém uma referência para o objeto estático erro categoria para erros iostream. O objeto é necessária para substituir o
error_category::name() função virtual para retornar um ponteiro para a "iostream" string. Ele é utilizado para identificar os códigos de erro fornecidos nas excepções de std::ios_base::failure tipo.Original:
Obtains a reference to the static error category object for iostream errors. The object is required to override the virtual function
error_category::name() to return a pointer to the string "iostream". It is used to identify error codes provided in the exceptions of type std::ios_base::failure.The text has been machine-translated via Google Translate.
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Parâmetros
(Nenhum)
Original:
(none)
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Valor de retorno
Uma referência ao objeto estático do tipo não especificado de tempo de execução, derivado de std::error_category.
Original:
A reference to the static object of unspecified runtime type, derived from std::error_category.
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Exceções
Exemplo
#include <iostream>
#include <fstream>
int main()
{
std::ifstream f("doesn't exist");
try {
f.exceptions(f.failbit);
} catch (const std::ios_base::failure& e) {
std::cout << "Caught an ios_base::failure.\n"
<< "Error category: " << e.code().category().name() << '\n';
}
}
Saída:
Caught an ios_base::failure.
Error category: iostream
Veja também
exceção fluxo Original: stream exception The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (of std::ios_base public class membro)
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(C++11) |
O erro de IO códigos de fluxo Original: the IO stream error codes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (enum) |