[Bug c++/30344] New: template type argument cannot be initialized by a default parameter

[Bernd dot Donner at gmx dot net]

The following code sample is compiled by several other compilers. Gcc compiles
the following example, when the function f is put into the global scope.
The example can also be compiled, when v has only a single template parameter.



template <class T1, class T2>
class v { };

class c2 {
    void f(const v<int, int> &t = v<int, int>()) { }
};

int main() { }



The code cannot be compiled by gcc 3.4, 4.1.2 and 4.2
In the example it is of course essential that t is a _constant_ reference.

Bernd Donner


-- 
           Summary: template type argument cannot be initialized by a
                    default parameter
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: Bernd dot Donner at gmx dot net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30344