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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Function macro expansion with return cast problem"
href="http://llvm.org/bugs/show_bug.cgi?id=20050">20050</a>
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<th>Summary</th>
<td>Function macro expansion with return cast problem
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>3.4
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>-New Bugs
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>paul.tankard@sumo-digital.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Possibly Windows only (don't have different machine to test)
clang version 3.4.1 (207424)
Target: i686-pc-mingw32
Thread model: posix
In visual studio, cpp file is including interlockedapi.h which has the
following definition.
#define InterlockedExchangePointer(Target, Value) \
(PVOID)InterlockedExchange((PLONG)(Target), ((LONG)(LONG_PTR)(Value)))
When invoked in code via
return ::InterlockedExchangePointer(Dest, Exchange);
The following is produced.
error : unexpected parenthesis after '::'
1> return ::InterlockedExchangePointer(Dest, Exchange);
1> ^
1> C:\Program Files (x86)\Windows Kits\8.0\include\um\interlockedapi.h(76,4) :
note: expanded from macro 'InterlockedExchangePointer'
1> (PVOID)InterlockedExchange((PLONG)(Target), ((LONG)(LONG_PTR)(Value)))
error : expected '(' for function-style cast or type construction
1> return ::InterlockedExchangePointer(Dest, Exchange);
1> ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1> C:\Program Files (x86)\Windows Kits\8.0\include\um\interlockedapi.h(76,11)
: note: expanded from macro 'InterlockedExchangePointer'
1> (PVOID)InterlockedExchange((PLONG)(Target), ((LONG)(LONG_PTR)(Value)))</pre>
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