<html>
<head>
<base href="http://llvm.org/bugs/" />
</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 confused by using directive in namespace in linkage spec"
href="http://llvm.org/bugs/show_bug.cgi?id=22434">22434</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>clang confused by using directive in namespace in linkage spec
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</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>hyrosen@mail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Given this code in g.cpp
extern "C" {
namespace A { struct S; }
namespace B { using namespace A; struct T { S *t; }; }
}
extern "C++" {
namespace C { struct U; }
namespace D { using namespace C; struct V { U *t; }; }
}
namespace E { struct W; }
namespace F { using namespace E; struct X { W *t; }; }
clang says
g.cpp:3:45: error: unknown type name 'S'; did you mean '::B::S'?
namespace B { using namespace A; struct T { S *t; }; }
^
::B::S
g.cpp:2:22: note: '::B::S' declared here
namespace A { struct S; }
^
g.cpp:7:45: error: unknown type name 'U'; did you mean '::D::U'?
namespace D { using namespace C; struct V { U *t; }; }
^
::D::U
g.cpp:6:22: note: '::D::U' declared here
namespace C { struct U; }
^
2 errors generated.
and that seems wrong to me, especially for the extern "C++" version.
Note that clang has no problem when the code is not in a linkage spec.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>