std::basic_ofstream<CharT,Traits>::is_open
< cpp | io | basic ofstream
|
bool is_open() const;
|
||
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) |