std::ios_base::failure

 

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輸入/輸出庫

I / O操縱

C-風格的I / O

緩衝區 Original: Buffers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_streambuf

basic_filebuf

basic_stringbuf

strstreambuf （過時了）

流 Original: Streams The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

抽象 Original: Abstractions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

ios_base

basic_ios

basic_istream

basic_ostream

basic_iostream

文件I / O Original: File I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_ifstream

basic_ofstream

basic_fstream

字元串I / O Original: String I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_istringstream

basic_ostringstream

basic_stringstream

陣列的I / O Original: Array I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

istrstream （過時了）

ostrstream （過時了）

strstream （過時了）

類型 Original: Types The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

streamoff

streamsize

fpos

Error類的介面 Original: Error category interface The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

iostream_category （C++11）

io_errc （C++11）

 

ios_base::failure

成員函數 Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

failure::failure

 

Defined in header <ios>
class failure;

類std::ios_base::failure在失敗時拋出一個異常對象，是由輸入/輸出庫中的函數定義.

Original:

The class std::ios_base::failure defines an exception object that is thrown on failure by the functions in the Input/Output library.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Inheritance diagram （至 C++11）

Inheritance diagram （C++11 起）

成員函數

(constructor)	構造異常對象 Original: constructs the exception object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成員函數）

Inherited from std::system_error

Member functions

code	返回錯誤代碼 Original: returns error code The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成員函數of std::system_error）
what [虛擬的] </ SPAN></div></div>	返回解釋性字元串 Original: returns explanatory string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （虛擬公有成員函數of std::system_error）

</div>

Inherited from std::runtime_error

Inherited from std::exception

Member functions

(destructor) [虛擬的] </ SPAN></div></div>	解構異常對象 Original: destructs the exception object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （虛擬公有成員函數of std::exception）
what [虛擬的] </ SPAN></div></div>	返回一個說明字元串 Original: returns an explanatory string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （虛擬公有成員函數of std::exception）

</div>

為例

#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';
    }
}

Output:

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

另請參閱

io_errc （C++11）	IO流的錯誤代碼 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. （枚舉）