Complete code is below [just a few lines]. Note-- bug goes away when I
initialize the variable outside the class, not inside.
qpo...@merlin: ~$ cat temp.cc
template<class T=int> class MyTraits {
public:
static const T kValue = 0;
};
template<>
const int MyTraits<int>::kValue; // define it.
int main(){
const void * a = &(MyTraits<int>::kValue);
}
qpo...@merlin: ~$ g++ temp.cc
/tmp/ccuYrD0D.o: In function `main':
temp.cc:(.text+0x14): undefined reference to `MyTraits<int>::kValue'
collect2: ld returned 1 exit status
qpo...@merlin: ~$ g++ -v
Using built-in specs.
Target: i686-linux
Configured with: ../configure --build=i686-linux --with-arch=nocona
--with-tune=core2 --with-thread=posix --with-as=/usr/local/bin/as
--with-ld=/usr/local/bin/ld --with-system-zlib --program-suffix=-4.3
Thread model: posix
gcc version 4.3.5 (GCC)
qpo...@merlin: ~$ uname -a
Linux merlin.fit.vutbr.cz 2.6.32.12 #1 SMP Tue Apr 27 15:10:42 CEST 2010 x86_64
x86_64 x86_64 GNU/Linux
qpo...@merlin: ~$
--
Summary: Link error when defining templated static const variable
Product: gcc
Version: 4.3.5
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dpovey at gmail dot com
GCC build triplet: i686-linux-gnu
GCC host triplet: i686-linux-gnu
GCC target triplet: i686-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44548
