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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 - clang cannot initialize a variable of type 'double (*)[a][b]' with an rvalue of type 'double (*)[a][b]'"
   href="https://bugs.llvm.org/show_bug.cgi?id=47234">47234</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>clang cannot initialize a variable of type 'double (*)[a][b]' with an rvalue of type 'double (*)[a][b]'
          </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>tangyixuan@mail.dlut.edu.cn
          </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>Clang++ rejects the following code while g++ accepts.

$ cat s.C

#include<stdio.h>
#include<stdlib.h>

int a,b;

void f(double *x1)
{
  double (*x2)[a][b]=(double(*)[a][b])x1;
}

int main()
{ double *data;
  a=100;
  b=100;
  data=(double*)malloc(a*b*sizeof(double));
  f(data,0);
  return 0;
}

$ clang++ -c s.C
s.C:8:12: error: cannot initialize a variable of type 'double (*)[a][b]' with
an rvalue of type 'double (*)[a][b]'
  double (*x2)[a][b]=(double(*)[a][b])x1;
           ^         ~~~~~~~~~~~~~~~~~~~
1 error generated.</pre>
        </div>
      </p>


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