qualttp21.c

gcc-you can use this code to learn something about gcc, and inquire further into linux,

// Copyright (C) 2002 Free Software Foundation
// Contributed by Roger Sayle <[e-mail]>
// { dg-do compile }

template <class A>
class foo {
   int _foo;
public:
   foo() {}
protected:
   ~foo() {} // { dg-error "~foo" }
};

int main()
{
  foo<int> a; // { dg-error "context" }
}