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<base href="https://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 --- - undefined reference to std::ios_base::failure::failure"
href="https://llvm.org/bugs/show_bug.cgi?id=24844">24844</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>undefined reference to std::ios_base::failure::failure
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.7
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows XP
</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>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>daniel.f.starke@freenet.de
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Using Clang/LLVM 3.7.0 in combination with GCC 5.2.0 to compile a simple
application like this:
#include <iostream>
#include <string>
int main() {
std::string msg = "hello world";
std::ios_base::failure f(msg);
return 0;
}
gives me the following error (it compiles without an error with g++):
2fb172.o:(.text+0xa7): undefined reference to
`std::ios_base::failure::failure(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&)'
Reducing the pre-processed test case and comparing the assembly for the called
function gives
_ZNSt8ios_base7failureB5cxx11C1ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE
for GCC and
_ZNSt8ios_base7failureC1ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE
for Clang.
Or better readable...
GCC sees:
std::ios_base::failure[abi:cxx11]::cxx11(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&)
Clang sees: std::ios_base::failure::failure(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&)
I guess this might be due to the lacking support for __attribute__((__abi_tag__
("cxx11"))) in Clang.</pre>
</div>
</p>
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