[LLVMbugs] [Bug 9325] New: virtual methods of template class not instanciated under specific conditions
bugzilla-daemon at llvm.org
bugzilla-daemon at llvm.org
Fri Feb 25 08:43:33 PST 2011
http://llvm.org/bugs/show_bug.cgi?id=9325
Summary: virtual methods of template class not instanciated
under specific conditions
Product: clang
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
AssignedTo: unassignedclangbugs at nondot.org
ReportedBy: frrrwww at gmail.com
CC: llvmbugs at cs.uiuc.edu
Created an attachment (id=6234)
--> (http://llvm.org/bugs/attachment.cgi?id=6234)
test case as a file for convenience
mawww at bonheur ~/tmp/clang $ cat test.cpp
template<typename T>
class Target
{
public:
virtual int Value() const
{
return 0;
}
};
template<typename T>
struct Provider
{
static Target<T> Instance;
};
template<typename T>
Target<T> Provider<T>::Instance;
int main()
{
Target<int>* traits = &Provider<int>::Instance;
}
mawww at bonheur ~/tmp/clang $ clang++ test.cpp
/tmp/cc-QPIfS9.o:(.rodata._ZTV6TargetIiE[_ZTV6TargetIiE]+0x10): undefined
reference to `Target<int>::Value() const'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
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