<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 - Do not warn for artificial expressions."
   href="https://bugs.llvm.org/show_bug.cgi?id=37845">37845</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Do not warn for artificial expressions.
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </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>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>zhonghao@pku.org.cn
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>dgregor@apple.com, llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>The code is as follow:

namespace std
{
 struct string
 {
 ~string();
 string();
 };
}

int

main(const int,
 const char * const * const)
{
 std::string x[0UL][0UL] =
 {
 };

 std::string y[0UL] =
 {
 };

 int z[0ul][0UL] =
 {
 };

 return 0;
}

It comes from a gcc bug report:
<a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=35602">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=35602</a>

Indeed, a previous version of g++ produces a different warning message, but
users are not satisfied. As a result, g++ generates a new warning message.
However, clang++ accepts it without any warnings. Shall clang also add some
warning messages for this?</pre>
        </div>
      </p>


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