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<base href="http://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Lambda inside lambda doesn't capture the variable"
href="http://llvm.org/bugs/show_bug.cgi?id=18780">18780</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Lambda inside lambda doesn't capture the variable
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>C++11
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>abyss.7@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Here is a sample code:
#include <functional>
#include <iostream>
struct A {
int a = 0;
std::function<void()> on_run;
};
int main() {
auto on_create = [](A* a) {
std::cout << a << " " << a->a << std::endl;
a->on_run = [&a]() {
std::cout << a << " " << a->a << std::endl;
};
};
A a;
on_create(&a);
a.a = 1;
a.on_run();
return 0;
}
The compilation command-line:
clang++ -std=c++11 test.cc -o test
Everything goes ok, except, that the possible output from `./test` is:
0x7fff6d180ac0 0
0x7fff6d180ac8 28930064
It looks like the second output has arbitrary values, since sometimes it even
segfaults.</pre>
</div>
</p>
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