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<base href="http://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Compilation failure for std::map iterator member variable"
href="http://llvm.org/bugs/show_bug.cgi?id=17701">17701</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Compilation failure for std::map iterator member variable
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.3
</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>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>zenju@gmx.de
</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>Hi,
I'm currently facing the following showstopper-bug. The very same code compiles
fine with GCC and VC:
#include <map>
struct Test
{
std::map<int, Test>::iterator prev;
};
int main()
{
return 0;
}
With clang 500.2.75 however I get this error message:
localhost:Obj zenju$ clang -std=c++11 -stdlib=libc++ test.cpp
In file included from test.cpp:1:
In file included from /usr/bin/../lib/c++/v1/map:371:
In file included from /usr/bin/../lib/c++/v1/__tree:16:
In file included from /usr/bin/../lib/c++/v1/memory:594:
/usr/bin/../lib/c++/v1/utility:221:9: error: field has incomplete type 'Test'
_T2 second;
^
/usr/bin/../lib/c++/v1/__tree:602:16: note: in instantiation of template class
'std::__1::pair<int, Test>' requested here
value_type __value_;
^
/usr/bin/../lib/c++/v1/__tree:624:22: note: in instantiation of template class
'std::__1::__tree_node<std::__1::pair<int, Test>, void *>'
requested here
typedef typename __node::base __node_base;
^
/usr/bin/../lib/c++/v1/map:541:19: note: in instantiation of template class
'std::__1::__tree_iterator<std::__1::pair<int, Test>,
std::__1::__tree_node<std::__1::pair<int, Test>, void *> *, long>'
requested here
_TreeIterator __i_;
^
test.cpp:6:32: note: in instantiation of template class
'std::__1::__map_iterator<std::__1::__tree_iterator<std::__1::pair<int, Test>,
std::__1::__tree_node<std::__1::pair<int, Test>, void *> *, long> >'
requested here
std::map<int, Test>::iterator prev;
^
test.cpp:4:8: note: definition of 'Test' is not complete until the closing '}'
struct Test
^
1 error generated.
I know that the iterator literally depends on the struct's type, however it
should not depend on the struct's size, so there is no reason to fail
compilation.
Regards, Zenju</pre>
</div>
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