Re: efficient vector/matrix operations in Ada

[Larry Hazel <lhazel@mindspring.com>]

Russ wrote:
> 
> Here's how you write "A = B + C + D;" efficiently:
> 
>     A  = B;
>     A += C;
>     A += D;
> 
> This requires no temporary matrices or passing by value. The original
> form (A=B+C+D) is fine for rapid prototyping, but the efficient form
> is preferable for production code. As far as I am concerned, Ada
> really needs arithmetic assignment operators. Sure, you can use
> procedures, but they're intent and effect is not as obvious to the
> reader.
> 
Seems to me if a compiler can't generate the most efficient code for 

A = B + C + D

  or

A := B + C + D

in any language, you need a different compiler.

Larry