<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 - By-value and by-reference parameters should not have a partial ordering due to constraints"
   href="https://bugs.llvm.org/show_bug.cgi?id=49106">49106</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>By-value and by-reference parameters should not have a partial ordering due to constraints
          </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>enhancement
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>C++2a
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>david@doublewise.net
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>blitzrakete@gmail.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>The following invalid translation unit is accepted by clang:

```
template<typename T>
int f(T);

template<typename T> requires true
int f(T const&);

int i = f(42);
```

See it live: <a href="https://godbolt.org/z/Wh41x6">https://godbolt.org/z/Wh41x6</a>

See <a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96333">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96333</a> for more context.</pre>
        </div>
      </p>


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