Re: [boost] Geometry/Vector Lib

From: Dave Harris (brangdon_at_[hidden])
Date: 2006-10-06 16:38:33

In-Reply-To: <eg3csg$jm9$1_at_[hidden]>
andy_at_[hidden] (Andy Little) wrote (abridged):
> Why not  :
> 
> at_x(vec)

If we don't mind the syntactic clutter of the function call, we can use 
vec.x().

   double vector::x() const { return data[0]; }
   double vector::y() const { return data[1]; }

This ought to have the runtime efficiency of vec.x while still hiding the 
internal representation, and supporting indexed access without undefined 
behaviour. The only argument I can see against it is that some people 
don't want to have to type the brackets.

-- Dave Harris, Nottingham, UK.