Re: Better way to do this? (enum or map?)

* MathStuf:


Consider whether you can replace enums with types.

E.g., instead of

   enum Kind{ a, b, c };

   struct Something { Kind kind; ... };

   void foo( Something& x }
   {
       switch( x.kind )
       {
           case a: doA( x ); break;
           case b: doB( x ); break;
           case c: doC( x ); break;
       }
   }

   int main()
   {
       Something sth;
       sth.kind = c;
       foo( sth );
   }

try

   struct Something
   {
       ...
       virtual void foo() = 0;
   };

   struct A: Something { void foo() { /* like doA */ } };
   struct B: Something { void foo() { /* like doB */ } };
   struct C: Something { void foo() { /* like doC */ } };

   int main()
   {
       C sth;
       sth.foo();
   }

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