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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - not1 + mem_fn does not work together"
href="http://llvm.org/bugs/show_bug.cgi?id=21026">21026</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>not1 + mem_fn does not work together
</td>
</tr>
<tr>
<th>Product</th>
<td>libc++
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>MacOS X
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>All Bugs
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>thomas.sanchz@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu, mclow.lists@gmail.com
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Hi,
While nesting algorithms and functor I stumble upon a code that does not
compile:
#include <functional>
#include <algorithm>
struct Test { bool pred() const { return true; } };
int main(int argc, char *argv[])
{
Test* t = nullptr;
// does not work: error: no matching function for call to object of type
'const std::__1::__mem_fn<bool (Test::*)() const>
auto f1 = std::not1(std::mem_fn(&Test::pred));
f1(t);
// works
auto f2 = std::not1(std::mem_fun(&Test::pred));
f2(t);
// works
auto f3 = std::not1(std::bind(&Test::pred, std::placeholders::_1));
f3(t);
}
Compiled with: clang++ -O0 -Wall -std=c++11 test.cpp on Mac OS X:
Apple LLVM version 6.0 (clang-600.0.54) (based on LLVM 3.5svn)
Target: x86_64-apple-darwin13.4.0
Thread model: posix
Funny thing, with GCC, it is f3 which do not compile :)
Thanks,</pre>
</div>
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