is_open [C++ Reference]
Keywords: io,is_open
Date: 2010-04-18T22:34:25-0700

[[is_open]]
C++ Reference
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## is_open

Syntax:

        bool fstream::is_open(void);

Returns true if the stream is associated with a file. In other words, a file has been successfully opened for this stream and close has not been called.

Related Topics: open, close

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