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      <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 - overloadable + string literal => ambiguous"
   href="https://bugs.llvm.org/show_bug.cgi?id=49978">49978</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>overloadable + string literal => ambiguous
          </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
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>jonathanchesterfield@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Godbolt <a href="https://godbolt.org/z/49j3E6Tjn">https://godbolt.org/z/49j3E6Tjn</a>

Give overloadable functions on const char* and char*,

__attribute__((overloadable))
void func(const char * s) {}

__attribute__((overloadable))
void func(char * s) {}


All the calls below work except the unadorned string literal. This should decay
to a char* (this is C, not C++) and call the char* overload.

<source>:17:5: error: call to 'func' is ambiguous
    func("failure");

void caller()
{
    char mut[4] = "mut";
    const char * cst = "cst";
    func(mut);
    func(cst);
    func((const char*)"cst cast");
    func((char*)"mut cast");
    func(&"explicit ok"[0]);
    func((char[3]){1,2,3});
    func((const char[3]){1,2,3});
    func("failure");
}

This is moderately annoying for some library code intended for openmp so I'm
probably available to fix if there is consensus that this is indeed a bug in
clang.</pre>
        </div>
      </p>


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