I've prepared a simple variadic template test in Code::Blocks, but I'm getting an error:

No matching function for call to 'OutputSizes()'

Here's my source code:

#include <iostream>
#include <typeinfo>

using namespace std;

template <typename FirstDatatype, typename... DatatypeList>
void OutputSizes()
{
    std::cout << typeid(FirstDatatype).name() << ": " << sizeof(FirstDatatype) << std::endl;
    OutputSizes<DatatypeList...>();
}

int main()
{
    OutputSizes<char, int, long int>();
    return 0;
}

I'm using GNU GCC with -std=C++0x. Using std=gnu++0x makes no difference.