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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bool is_open() const;
 
 
Checks if the file stream has an associated file.
Effectively calls rdbuf()->is_open().
[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
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_openwas not declared with const qualifier | declared with const qualifier |