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    <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 - Inheriting operator() from multiple classes doesn't cause ambiguity on overload resolution"
   href="https://bugs.llvm.org/show_bug.cgi?id=36226">36226</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Inheriting operator() from multiple classes doesn't cause ambiguity on overload resolution
          </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>Windows NT
          </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++
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>ixsci@yandex.ru
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>dgregor@apple.com, llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>The following code snippet (to my knowledge) should be rejected because the
overload resolution can't cope with the ambiguity of which operator() to call.
This ambiguity is described in [class.member.lookup] section of the C++
standard.

#include <iostream>

using namespace std;

struct IntPrinter
{
    void operator()(int i)
    {
    }
};

class FloatPrinter
{
public:
    void operator()(float f)
    {
    }
};

struct Printer: IntPrinter, FloatPrinter
{
};

int main()
{
    Printer printer;
    printer(55);
    printer(55.1f);
};

The code compiles fine but should fail to compile. It doesn't compile on gcc.</pre>
        </div>
      </p>


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