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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - clang should support arbitrary order of C++11 attributes and GCC-style attributes"
href="http://llvm.org/bugs/show_bug.cgi?id=18148">18148</a>
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<th>Summary</th>
<td>clang should support arbitrary order of C++11 attributes and GCC-style attributes
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>C++11
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>jonathan.sauer@gmx.de
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<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>The following code (which merely declares two functions) fails to compile with
clang r196506:
__attribute__((__noinline__)) [[noreturn]] void foo();
[[noreturn]] __attribute__((__noinline__)) void bar();
This results in:
% ~/LLVM/build/Release+Asserts/bin/clang++ -c -std=c++11 clang.cpp
clang.cpp:1:31: error: an attribute list cannot appear here
__attribute__((__noinline__)) [[noreturn]] void foo();
^~~~~~~~~~~~
1 error generated.
clang however only complains about "foo", not about "bar", where the order of
GCC-style attribute and C++11-style attribute is reversed. Unless there is a
need to require C++11-style attributes first and GCC-style attributes second,
clang should support both orderings. (and possibly arbitrary orderings like
<gcc attr> <c++11 attr> <gcc attr>)</pre>
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