On 5 January 2012 03:06, Walter Bright <newshou...@digitalmars.com> wrote:
> On 1/4/2012 4:30 PM, Sean Kelly wrote: > >> If a library is written without consideration to what is virtual and what >> is >> not, its performance will be the least of your problems. >> > > I agree. Such is a massive failure in designing a polymorphic type, and > the language can't help with that. > I don't follow.. how is someone failing (or forgetting) to type 'final' a "massive design failure"? It's not a design failure, it's not even 'wrong'... it's INEVITABLE. And the language CAN help with that, by making expensive operations require explicit declaration. At least make a compiler flag so I can disable virtual-by-default for my project...?
