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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - shared_ptr does not compile with fancy pointer allocators"
href="http://llvm.org/bugs/show_bug.cgi?id=20616">20616</a>
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<th>Summary</th>
<td>shared_ptr does not compile with fancy pointer allocators
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<th>Product</th>
<td>libc++
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<th>Version</th>
<td>unspecified
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<th>Hardware</th>
<td>All
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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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>All Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>tkoeppe@google.com
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu, mclow.lists@gmail.com
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>The implementation of allocate_shared currently assumes that
allocator_traits<_Alloc>::pointer is a native pointer, and thus doesn't compile
with fancy pointers.
I believe all that's needed is to replace "__hold2.get()" by
"_VSTD::addressof(*__hold2.get())" in a few places (e.g. memory:4289 and
memory:4292, maybe also for the _LIBCPP_HAS_NO_VARIADICS versions.
A few quick tests suggest that with those fixes you can use allocate_shared and
also the allocator constructor with fancy pointer allocators.</pre>
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</p>
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