std::iostream_category
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Definido no cabeçalho <ios> | ||
conststd::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.
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Índice |
[editar]Parâmetros
(Nenhum)
Original:
(none)
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[editar]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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[editar]Exceções
[editar]Exemplo
#include <iostream>#include <fstream> int main(){std::ifstream f("doesn't exist");try{ f.exceptions(f.failbit);}catch(conststd::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
[editar]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) | |
(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) |
