I have run into the strange situation. The skeleton macro below
did't work rightly ( the diagnostics was : "Changing const n ..." ).
      #include <iostream.h>
       class X {
       public:
          int f(int j) const {return j;}
       };
       void main() {
          X a;
          for (int i=0; i<3; i++) {
             int n=a.f(i);
             switch (n) {
                case 0: cout<<n<<endl; break;
                case 1: cout<<n<<endl; break;
                case 2: cout<<n<<endl; break;
             }
          }
       }
Meanwhile, the next modification worked fine ( member function f is not
constant now ).
      #include <iostream.h>
       class X {
       public:
          int f(int j) /*const*/ {return j;}
       };
       void main() {
          X a;
          for (int i=0; i<3; i++) {
             int n=a.f(i);
             switch (n) {
                case 0: cout<<n<<endl; break;
                case 1: cout<<n<<endl; break;
                case 2: cout<<n<<endl; break;
             }
          }
       }
Help me please !
My system configuration is
     Linux 2.0.27
     ROOT 1.02/00
     CINT 5.13.17
                                         Yuri Belikov