std::basic_ofstream<CharT,Traits>:: is_open
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C++98/26*
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C++98/26*
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C++98/26*
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std::basic_ofstream
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basic_ofstream::is_open
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(C++11)
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bool
is_open
(
)
const
;
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Checks if the file stream has an associated file.
Effectively calls rdbuf()->is_open() .
Parameters
(none)
Return value
true if the file stream has an associated file, false otherwise.
Example
|
This section is incomplete
Reason: no example |
Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
|---|---|---|---|
| LWG 365 | C++98 |
is_open
was not declared with
const
qualifier
|
declared with const qualifier |
See also
|
opens a file and associates it with the stream
(public member function) |
|
|
closes the associated file
(public member function) |
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