Problem with templates

{ Reformatted; please limit your lines to 70 chars -mod }

Hi,

I have a strange problem with templates in c++. I need to access a
singleton with template methods inside another templated class. The
problem is isolated in the following piece of code, which doesn?t
compile. For example, in gcc 4.7.3 you will get

  ?test.cpp:15:23: error: expected primary-expression before 'int'?,

which did not help me to identify the root of the problem. It will
compile if I remove any of the two templates, but I want both
templates. The code will also compile if I remove the bar() function
and replace it with ?a? directly. My problem is that I cannot see why
the bar() function is a problem here.

Any ideas? What exactly is the problem in the example below?

class A {
public:
   template<typename T>
   T get() { return 0; }
};

static A a;

template<typename U>
class B {
public:
   static A& bar() { return a; }

   static int foo() {
     int x = bar().get<int>(); // This doesn?t compile.
       // Replace with ?int x = a.get<int>();? will do the trick.
     return x;
   }
};

int
main(int argc, char * argv[]) {
   B<double>::foo();
   return 0;
}

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