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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - c++11 name inclusion without std=c++11"
href="https://llvm.org/bugs/show_bug.cgi?id=26754">26754</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>c++11 name inclusion without std=c++11
</td>
</tr>
<tr>
<th>Product</th>
<td>libc++
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>FreeBSD
</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>All Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>fernando.apesteguia@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>It seems that 'array' name is included into std namespace even if no -std=c++11
is specified.
Here is a test program:
#include <iostream>
using namespace std;
template<typename T>
struct array {
array(T t);
};
using ::array;
template<typename T>
::array<T>::array(T t) {}
array<int> x(1);
Compile with clang++ -c foo.cpp unless otherwise specified. Some results:
FreeBSD 10.2
_LIBCPP_VERSION 1101
clang++ --version
FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512
Target: x86_64-unknown-freebsd10.2
Thread model: posix
Compilation OK.
-----------------------
FreeBSD 11.0-CURRENT
foo.cpp:12:1: error: unknown type name 'array'
array<int> x(1);
^
2 errors generated
clang 3.7.1 (tags/RELEASE_371/final 255217)
Compilation FAILS
-----------------------------
Ubuntu 14.04
clang++ --version
Ubuntu clang version 3.4-1ubuntu3 (tags/RELEASE_34/final) (based on LLVM 3.4)
Target: x86_64-pc-linux-gnu
Thread model: posix
Compilation OK
If compiled with libc++
clang++ -c -stdlib=libc++ foo.cpp
Compilation OK.
-----------------------------
The problem was detected with cad/OpenVsp from our ports tree:
<a href="http://www.freshports.org/cad/openvsp/">http://www.freshports.org/cad/openvsp/</a>
That program compiled fine in FreeBSD 9.x and 10.x but fails with the new
clang/libc++ in 11-current.
You can see the discussion here:
<a href="https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207253">https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207253</a>
I don't know if maybe I'm missing something obvious here...
Please, let me know should you need me to run some tests.</pre>
</div>
</p>
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