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# std::basic_ofstream::is_open

From cppreference.com
< cpp‎ | io‎ | basic ofstream

[edit template]

bool is_open(); |  | (until C++11)
bool is_open() const; |  | (since C++11)

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

### [edit] See also

open | opens a file and associates it with the stream (public member function) [edit]
close | closes the associated file (public member function) [edit]

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