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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - MSVC-compat __identifier implementation incomplete"
href="https://llvm.org/bugs/show_bug.cgi?id=27113">27113</a>
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<th>Summary</th>
<td>MSVC-compat __identifier implementation incomplete
</td>
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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>Windows XP
</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
</td>
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<th>Component</th>
<td>Frontend
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>turkeyman@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>MSVC has a feature __identifier("symbolname") which doesn't seem to work in
Clang.
One common use of __identifier is for keywords; ie, __identifier(class), which
works, but it also supports string identifiers which I make fairly extensive
use of in large multi-language projects.
MSVC produces a warning with string identifiers, which you are instructed to
suppress.
This code should compile:
auto x = (__pragma(warning(suppress: 4483)) __identifier("??_7MyClass@@6B@"));
Since MSVC mangling uses characters that are invalid in C++ identifiers (ie,
'?' and '@'), this is a trick to refer to symbols that are un-name-able.
On a side note; in VS, the symbol resolution yields a typed symbol, and type
deduction is correctly performed for 'x' in this case.</pre>
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