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      <base href="https://bugs.freedesktop.org/">
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - wl_array_for_each is not C++ compliant"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=101618">101618</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>wl_array_for_each is not C++ compliant
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Wayland
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>trivial
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>wayland
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>wayland-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>msisov@igalia.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Hi,

We've faced an issue, when we used wl_array_for_each in our C++ wayland client
implementation.

The problem is that one can't use wl_array_for_each(pos, array) when 
pos is passed as uint32_t*, for example, and array->data is assigned to it. In
C++, one cannot just convert void* to other pointer type implicitly as in C.

Is it possible to modify the macro defined to have explicit type cast?

#define wl_array_for_each(pos, array)   \
        for (pos = (uint32_t*) (array)->data; \

or maybe intptr_t before (array)->data ??. 

I'm not sure which one would be better, but it is to you to decide.

Br,
msisov</pre>
        </div>
      </p>


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