http://llvm.org/bugs/show_bug.cgi?id=12776
Bug #: 12776
Summary: Incorrect compile error for local class in
out-of-class member function
Product: clang
Version: trunk
Platform: PC
OS/Version: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: C++
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
This code should compile without any errors:
template<class T>
class SomeType
{
};
template<class T>
class Test
{
public:
Test();
};
template<class T>
Test<T>::Test()
{
class Local
{
public:
Local()
{
typedef SomeType<T> MyType;
}
};
Local instance;
}
int main(int argc, const char **argv)
{
Test<int> test;
return 0;
}
However, clang produces the following compile error:
main.cpp:21:30: error: template argument for template type parameter must be a
type
typedef SomeType<T> MyType;
^
main.cpp:30:15: note: in instantiation of member function 'Test<int>::Test'
requested here
Test<int> test;
^
main.cpp:1:16: note: template parameter is declared here
template<class T>
^
1 error generated.
This happens for clang version 3.1 trunk (svn revision 156484). It also
happens for clang 3.0.
This code compiles fine if the class named "Local" is not local *or* if the
member function is not defined out-of-class. However, in the latter case
compilation fails with a similar error when using clang 3.0.
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