<html>
    <head>
      <base href="https://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - std::sort_heap use (possible deleted) operator,"
   href="https://bugs.llvm.org/show_bug.cgi?id=43063">43063</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>std::sort_heap use (possible deleted) operator,
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>libc++
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </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>All Bugs
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedclangbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>yichen.yan@inf.ethz.ch
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=22402" name="attach_22402" title="test.cc">attachment 22402</a> <a href="attachment.cgi?id=22402&action=edit" title="test.cc">[details]</a></span>
test.cc

Summary: std::sort_heap use (possible deleted) operator, and failed to compile
if it's deleted.



Steps to Reproduce: clang++ -o /dev/null -std=c++11 --compile test.cc
 (test.cc attched)



Actual Results:
In file included from test.cc:1:
/home/yiyan/.local/bin/../include/c++/v1/algorithm:4998:67: error: overload
resolution selected deleted operator ','
    for (difference_type __n = __last - __first; __n > 1; --__last, --__n)
                                                          ~~~~~~~~^ ~~~~~
/home/yiyan/.local/bin/../include/c++/v1/algorithm:5008:5: note: in
instantiation of function template specialization
'std::__1::__sort_heap<std::__1::__less<int, int> &,
random_access_iterator_wrapper<int> >' requested here
    __sort_heap<_Comp_ref>(__first, __last, __comp);
    ^
/home/yiyan/.local/bin/../include/c++/v1/algorithm:5016:12: note: in
instantiation of function template specialization
'std::__1::sort_heap<random_access_iterator_wrapper<int>, std::__1::__less<int,
int> >' requested here
    _VSTD::sort_heap(__first, __last, __less<typename
iterator_traits<_RandomAccessIterator>::value_type>());
           ^
test.cc:33:10: note: in instantiation of function template specialization
'std::__1::sort_heap<random_access_iterator_wrapper<int> >' requested here
    std::sort_heap(sortcon.begin(), sortcon.end());
         ^
test.cc:23:10: note: candidate function [with U = long] has been explicitly
deleted
    void operator,(U) = delete;
         ^
1 error generated.



Expected Results: No error



Build Date & Hardware: Build 2019-08-20 on Linux x86_64</pre>
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