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std::ios_base::failure

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< cpp‎ | io‎ | ios base

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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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Abstrações
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Abstractions
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File I / O
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File I/O
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Cordas I / O
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String I/O
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Matriz de I / O
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Array I/O
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(obsoleta)
(obsoleta)
(obsoleta)
Tipos
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Types
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Interface de categoria de erro
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Error category interface
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(C++11)
(C++11)
 
ios_base::failure
Funções de membro
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Member functions
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failure::failure
 
Definido no cabeçalho <ios>
class failure;
O std::ios_base::failure classe define um objeto de exceção que é acionada em caso de falha as funções na entrada / saída da biblioteca.
Original:
The class std::ios_base::failure defines an exception object that is thrown on failure by the functions in the Input/Output library.
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cpp/error/exceptionstd-ios base-failure-2003-inheritance.svg
Sobre esta imagem

Inheritance diagram (até C++11)

cpp/error/exceptioncpp/error/runtime errorcpp/error/system errorstd-ios base-failure-inheritance.svg
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Inheritance diagram (desde C++11)

Índice

[editar] Funções de membro
constrói o objeto de exceção
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constructs the exception object
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(função pública membro) [edit]

Herdado de std::system_error

Member functions
retorna código de erro
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returns error code
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(of std::system_error função pública membro) [edit]
[virtual]
Retorna a string explicativo
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returns explanatory string
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(of std::system_error função pública virtual membro) [edit]

Herdado de std::runtime_error


Herdado de std::exception

Member functions

[virtual]
destrói o objeto de exceção
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destructs the exception object
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(of std::exception função pública virtual membro) [edit]
[virtual]
retorna uma cadeia explicativa
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returns an explanatory string
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(of std::exception função pública virtual membro) [edit]

[editar] 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"
                  << "Explanatory string: " << e.what() << '\n'
                  << "Error code: " << e.code() << '\n';
    }
}

Saída: 

Caught an ios_base::failure.
Explanatory string: ios_base::clear: unspecified iostream_category error
Error code: iostream:1

[editar] Veja também

(C++11)
O erro de IO códigos de fluxo
Original:
the IO stream error codes
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(enum) [edit]
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