Problems with template template parameter

[Alexander Helm <helm at fs dot tum dot de>]

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Hi,

I'm sorry, I don't know if it's a bug or just my fault. If I compile the
following code with g++-2.95 everything is fine. Version 3.2.1 complaints.


The code:

~  #include <iostream>

~  using namespace std;

~  template<int rows, int cols, template<int rows, int cols> class C>
~    class Matrix_Base {
~      public:
~        Matrix_Base() {
~          cout << __PRETTY_FUNCTION__ << endl;
~        };
~        template<int cols2>
~          C<rows,cols2>* operator*(C<cols,cols2>& lhs) {
~            return 0;
~          }
~    };

~  template<int rows, int cols>
~    class Matrix : public Matrix_Base<rows,cols,Matrix> {
~      public:
~        Matrix() : Matrix_Base<rows,cols,Matrix>() {
~          cout << __PRETTY_FUNCTION__ << endl;
~        };
~      };

~  template<int rows>
~    class Matrix<rows,1> : public Matrix_Base<rows,1,Matrix> {
~      public:
~        Matrix() : Matrix_Base<rows,1,Matrix>() {
~          cout << __PRETTY_FUNCTION__ << endl;
~        };
~    };

~  int main (int argc, char **argv) {
~    Matrix<2,2> A;
~    Matrix<2,1> B;

~    A*A;
~  }

The error message of g++ (3.2.1):

~  test2.cc: In constructor `Matrix<rows, 1>::Matrix()':
~  test2.cc:29: type/value mismatch at argument 3 in template parameter
~  list for `template<int rows, int cols, template<int rows, int cols>
~  class C> class Matrix_Base'
~  test2.cc:29:   expected a class template, got `Matrix<rows, 1>'
~  test2.cc:29: class `Matrix<rows, 1>' does not have any field named `
~  <declaration error>'
~  test2.cc: In function `int main(int, char**)':
~  test2.cc:36: warning: unused variable `Matrix<2, 1> B'


Any help will be appreciated.

	Thanks in advance
	Alexander
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