<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 - Poor error message from control flow at global scope"
   href="https://bugs.llvm.org/show_bug.cgi?id=35114">35114</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Poor error message from control flow at global scope
          </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>Windows NT
          </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>-New Bugs
          </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>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>If you compile the following code:


while(true) {}


You get the not especially helpful error message:

<source>:1:1: error: expected unqualified-id
while(true) {}
^
1 error generated.



This came up for me in the context of calling a macro that wrapped a few
statements in a `do { ... } while(false);` construct, and I spend a fair amount
of time looking for a missing semicolon somewhere before I finally found the
problem. I would have preferred to get a message along the lines of "while
loops not allowed outside of functions" or something else that directly says
the problem from the user's perspective.</pre>
        </div>
      </p>


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