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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - bogus lambda capture is not required warnings [-Wunused-lambda-capture]"
href="https://bugs.llvm.org/show_bug.cgi?id=35669">35669</a>
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<th>Summary</th>
<td>bogus lambda capture is not required warnings [-Wunused-lambda-capture]
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>5.0
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++11
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>boris@codesynthesis.com
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<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>The following two cases trigger bogus warnings:
auto& sm (scope_map::instance);
auto make_global_scope = [&sm] () -> scope&
{
auto i (sm.insert (dir_path (), false));
scope& r (i->second);
r.out_path_ = &i->first;
global_scope = scope::global_ = &r;
return r;
};
warning: lambda capture 'sm' is not required to be captured for this use
[-Wunused-lambda-capture]
auto& vp (variable_pool::instance);
auto set = [&vp, &gs] (const char* var, auto val)
{
using T = decltype (val);
gs.assign (vp.insert<T> (var)) = move (val);
};
warning: lambda capture 'vp' is not required to be captured for this use
[-Wunused-lambda-capture]
Both sm and vp are references to global variables. For the complete build log,
see:
<a href="https://stage.build2.org/?builds=&pn=build2&cf=linux-clang_5.0">https://stage.build2.org/?builds=&pn=build2&cf=linux-clang_5.0</a>
The same problem exists in trunk at the time of this report.</pre>
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