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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - -Wmissing-braces firing for aggregate structs with only 1 base and no members"
href="https://bugs.llvm.org/show_bug.cgi?id=43232">43232</a>
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<th>Summary</th>
<td>-Wmissing-braces firing for aggregate structs with only 1 base and no members
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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
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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++17
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>wyverald@gmail.com
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<th>CC</th>
<td>blitzrakete@gmail.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<p>
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<pre>==============================
struct Base { int i, j; };
struct Derived : public Base {};
int test() { return Derived{3, 4}.i; }
==============================
The code above fires a -Wmissing-braces warning. This is rather annoying since
the suggested alternative `Derived{{3, 4}}` isn't much better.
This is related to the old bug <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Warning "missing braces around initializer" causing problems with std::array"
href="show_bug.cgi?id=21629">https://bugs.llvm.org/show_bug.cgi?id=21629</a>
which was resolved by r314838, which specifically whitelisted the following
case:
============================
struct Inner { int i, j; };
struct Outer { Inner inner; };
int test() { return Outer{3, 4}.i; }
============================
r314838 specifically mentions in a FIXME: "Should aggregate initialization of a
struct with a single base class and no members also suppress the warning?" I
think the answer should be yes.</pre>
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