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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Clang-cl does not support /DMYDEF#value"
href="https://llvm.org/bugs/show_bug.cgi?id=25984">25984</a>
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<th>Summary</th>
<td>Clang-cl does not support /DMYDEF#value
</td>
</tr>
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<th>Product</th>
<td>clang
</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>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Driver
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>jvapen@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>Ref <a href="https://msdn.microsoft.com/en-us/library/hhzbb5c8.aspx">https://msdn.microsoft.com/en-us/library/hhzbb5c8.aspx</a>
The syntax of defining constants via the command line of MSVC supports both
/DMYDEF=0 as /DMYDEF#0
Clang-cl only supports the first one.
If you use the second one, I get the following warning.
Error given by clang-cl of version 3.5:
<command line>(10,14): warning : ISO C99 requires whitespace after the macro
name [-Wc99-extensions]
#define MYDEF#0 1
Note: I have also noticed this already in the latest builds of 3.8, though for
this reproduction, I have not yet upgraded my compiler.</pre>
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