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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [[gnu::init_priority(N)]] generates "unknown attribute" warning while __attribute__((init_priority(N))) works"
href="https://bugs.llvm.org/show_bug.cgi?id=32993">32993</a>
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<th>Summary</th>
<td>[[gnu::init_priority(N)]] generates "unknown attribute" warning while __attribute__((init_priority(N))) works
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>4.0
</td>
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<th>Hardware</th>
<td>PC
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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
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<th>Component</th>
<td>C++
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>romain.geissler@amadeus.com
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<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>Hi,
The following snippet (built with -std=gnu++14) will yield a "unknown
attribute" warning:
struct A{};
A A1 [[gnu::init_priority(1000)]]; // warning generated here
A A2 __attribute__((init_priority(1000))); // no warning here
<source>:3:8: warning: unknown attribute 'init_priority' ignored
[-Wunknown-attributes]
A A1 [[gnu::init_priority(1000)]];
^
1 warning generated.
According to the documentation here
<a href="https://clang.llvm.org/docs/LanguageExtensions.html#non-standard-c-11-attributes">https://clang.llvm.org/docs/LanguageExtensions.html#non-standard-c-11-attributes</a>
[[gnu::init_priority(1000)]] should be an alias for
__attribute__((init_priority(1000))), but it doesn't seem to be the case.
Tested on clang 4.0. See here <a href="https://godbolt.org/g/xvqO1z">https://godbolt.org/g/xvqO1z</a>
Cheers,
Romain</pre>
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