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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - macro suggest placement of missing semi colon"
href="http://llvm.org/bugs/show_bug.cgi?id=19833">19833</a>
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<tr>
<th>Summary</th>
<td>macro suggest placement of missing semi colon
</td>
</tr>
<tr>
<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>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>C++
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>sreich@kde.org
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>main.cpp.cpp:69:5: error: called object type 'void' is not a function or
function pointer
Q_ASSERT(startX >= 0);
^
/usr/include/qt/QtCore/qglobal.h:645:28: note: expanded from macro
'Q_ASSERT'
# define Q_ASSERT(cond) ((!(cond)) ? qt_assert(#cond,__FILE__,__LINE__)
: qt_noop())
^
1 error generated.
----------
const uint32_t startX;
Q_ASSERT(missingsemi)
Q_ASSERT(startX >= 0);
So what this ends up expanding to is essentially (missingsemi)(startX), and
since they are void we receive that error.
I am not aware of a method to improve the macro to help warn or error out on
missing semi colons in such a case (it'd be nice if we could static assert or
something. perhaps it's possible to static_assert that the type is not void?)
I was wondering if perhaps this was applicable to other scenarios in a
non-deadly way. That is, having the syntax suggestion messages say something
like "did you forget the semi colon", etc., iff it does not compile properly
via other means.</pre>
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