std::basic_ofstream<CharT,Traits>::is_open
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< cpp | io | basic ofstream
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std::basic_ofstream
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basic_ofstream::is_open | ||||
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(C++11) |
| bool is_open() const; |
|
Checks if the file stream has an associated file.
Effectively calls rdbuf()->is_open().
Contents |
[edit] Parameters
(none)
[edit] Return value
true if the file stream has an associated file, false otherwise.
[edit] Example
| This section is incomplete Reason: no example |
[edit] 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 |
[edit] See also
| opens a file and associates it with the stream (public member function) [edit] | |
| closes the associated file (public member function) [edit] |
