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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - raw_string_ostream doesn't set unbuffered"
href="http://llvm.org/bugs/show_bug.cgi?id=19979">19979</a>
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<th>Summary</th>
<td>raw_string_ostream doesn't set unbuffered
</td>
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Core LLVM classes
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>robeypointer@gmail.com
</td>
</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<pre>sorry if i got the component wrong. the bug is in Support/raw_ostream.h.
raw_string_ostream subclasses raw_ostream, but doesn't pass any value for the
"unbuffered" constructor field. the default is false (or buffered). but no
buffer is ever allocated because raw_string_ostream is a wrapper for a
std::string.
attempting to work around this bug will always end up in a codepath that tries
to delete[] the null buffer, and then sad faces all around.
the fix is simple. around line 441, this:
explicit raw_string_ostream(std::string &O) : OS(O) {}
should be this:
explicit raw_string_ostream(std::string &O) : raw_ostream(true), OS(O) {}</pre>
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