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<title>PTypes: streams: outfile</title>
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<p><a href="../index.html"><img src="title-21.png" width="253" height="39" alt="C++ Portable Types Library (PTypes) Version 2.1" border="0"></a>
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<p class="hpath"><a href="index.html">Top</a>: <a href="streams.html">Streams</a>:
outfile </p>
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<pre class="lang">#include <pstreams.h>
class outfile: outstm {
outfile( [ const string& filename, bool append = false ] );
string get/set_filename(string);
bool get/set_append(bool);
int get/set_umode(int);
}
</pre>
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<p>This class derives all public methods and properties from <a href="streams.iobase.html">iobase</a>
and <a href="streams.outstm.html">outstm</a>, and in addition defines the following:</p>
<p><span class="def">outfile::outfile( [ const string& filename, bool append
= false ] )</span> creates an output file stream, but does not open the file.
When opening a file with <span class="lang">open()</span>, it is truncated to
zero unless <span class="lang">append</span> property is set to true. <span class="lang">Filename</span>
and <span class="lang">append</span> parameters are optional.</p>
<p><span class="def">string outfile::get/set_filename(string)</span> sets the
file name. <span class="lang">set_filename()</span> closes the stream prior to
assigning the new value.</p>
<p><span class="def">bool outfile::get/set_append(bool)</span> -- if set to true,
the file pointer is set beyond the last byte of the file when opening the stream
with <span class="lang">open()</span>.</p>
<p><span class="def">int outfile::get/set_umode(int)</span> sets UNIX file mode
when creating a new file. By default a file is created with <span class="lang">0644</span>
octal, which on UNIX means read/write access for the owner and read-only access
for group members and all others. This property has no effect on Windows.</p>
<p class="seealso">See also: <a href="streams.iobase.html">iobase</a>, <a href="streams.outstm.html">outstm</a>,
<a href="streams.logfile.html">logfile</a>, <a href="streams.examples.html">Examples</a></p>
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