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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - basic_filebuf non-standard constructor/open functions for taking an open FILE stream"
href="https://llvm.org/bugs/show_bug.cgi?id=24567">24567</a>
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<th>Summary</th>
<td>basic_filebuf non-standard constructor/open functions for taking an open FILE stream
</td>
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<th>Product</th>
<td>libc++
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>All Bugs
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>welten@gmx.de
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=14773" name="attach_14773" title="patch that adds FILE* constructor/open function to basic_filebuf">attachment 14773</a> <a href="attachment.cgi?id=14773&action=edit" title="patch that adds FILE* constructor/open function to basic_filebuf">[details]</a></span>
patch that adds FILE* constructor/open function to basic_filebuf
Currently it is not possible to construct a C++ stream for an already open
file.
Some other C++ libraries offer non-standard extensions like
__gnu_cxx::stdio_filebuf from ext/stdio_filebuf.h
in the libstdc++.
Given that the current implementation of basic_filebuf uses a FILE stream
internally it is easily possibly to add an alternative constructor and open
function that takes an already open FILE stream.
Attached is a patch containing a straight forward approach to add this
functionality.</pre>
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