Template docs

[Sean Kelly]

Josh Stern wrote:
> The "Limitations" section of the language page on templates,
> http://www.digitalmars.com/d/template.html  is confusing.   In 
> particular, the sentence and example "Templates cannot be used 
> to add non-static members or functions to classes. For example:
> 
> *************************************************
> class Foo
> {
>     template TBar(T)
>     {
> 	T xx;			// Error
> 	int func(T) { ... }	// Error
> 
> 	static T yy;				// Ok
> 	static int func(T t, int y) { ... } 	// Ok
> 
> }
> 
> *******************************************************************
> 
> What is the "Error" in the code above?   Are the docs just out of
> date?

Yes.  However, all template member functions *are* implicitly final:

     class C
     {
         void tf(T)( T val ) { printf( "C\n" ); }
         alias tf!(int) f1;
         void f2( int val ) { tf( val ); }
     }

     class D : C
     {
         void f1( int val ) { printf( "D\n" );  }
         void f2( int val ) { printf( "D\n" );  }
     }

     void main( char[][] args )
     {
         C c = new D;

         c.f1( 0 );
         c.f2( 0 );
     }

prints:

     C
     D


Sean