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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Constexpr constructor of templated class does not require member initialization."
href="https://bugs.llvm.org/show_bug.cgi?id=35311">35311</a>
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<th>Summary</th>
<td>Constexpr constructor of templated class does not require member initialization.
</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>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>-New Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>chmielarz@int.pl
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>The standard requires that "for the constructor of a class or struct, every
base class sub-object and every non-variant non-static data member must be
initialized."[cpprefence.com]
Clang seems to ignore that requirement if the struct is a template.
This behavior is the same regardless of the version and standard.
Minimal example:
template<typename T> // commenting out this line generates appropriate errors
struct S{
constexpr S() /*: i(1)*/ {}
int i;
};
constexpr S<int> s;
int main() { return s.i; }</pre>
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