<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 - Incorrect template argument deduction for conversion operator"
   href="https://bugs.llvm.org/show_bug.cgi?id=32861">32861</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Incorrect template argument deduction for conversion operator
          </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>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>enhancement
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>C++
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>eniebler@boost.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>dgregor@apple.com, llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>The following compiles on gcc, but with clang-trunk, the static assertion
fails.

    #include <type_traits>

    void foo( int const & );

    struct S {
        template <class T>
        operator T& ()
        {
            static_assert(std::is_same<T&, int const&>::value,"");
            throw 42;
        }
    };

    int main() {
        foo(S{});
    }

I believe in this example "T" should be deduced to be "int const", not "int".</pre>
        </div>
      </p>


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