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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Set of pointer to incomplete type gives wrong warning message."
href="https://bugs.llvm.org/show_bug.cgi?id=41360">41360</a>
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<th>Summary</th>
<td>Set of pointer to incomplete type gives wrong warning message.
</td>
</tr>
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<th>Product</th>
<td>libc++
</td>
</tr>
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<th>Version</th>
<td>unspecified
</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>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>All Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mclow.lists@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>The following two bits of code give very odd error messages
(code/report from Jonathan Wakely via IRC)
#include <set>
struct Base { };
struct Derived; // derives from Base, but incomplete at this point
int main()
{
std::set<Derived*, std::less<Base*>> s;
};
== and ==
#include <set>
struct Base { };
struct Derived; // derives from Base, but incomplete at this point
template<typename T>
struct X
{
std::set<Derived*, std::less<Base*>> s;
};
The error message is:
/Sources/LLVM/llvm-project/libcxx/include/set:453:26: warning: the specified
comparator type does not provide a const
call operator [-Wuser-defined-warnings]
This is also <a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85965">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85965</a></pre>
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