On Wed, 15 Dec 2010 03:06 +0100 Jonathan Schmidt-Dominé <de...@the-user.org> wrote:
> > copy_if on a multidimensional container should not naively copy entire > > hyperplanes. More generally, I think that whenever an arbitrarily large > > object is to be copied, that should be explicit instead of implicit. A > > lot of focus in C++ is dedicated to making sure you don't copy the wrong > > thing. > > In my opinion by-value-types are good for mathematical objects and data like > numbers, tuples, sets, lists, vectors, dictionaries etc., by-reference-types > are good for things like graphical objects/widgets, hardware-ressources, io- > handles, factories etc. > Unnecessary copies? The compiler should care about that, I want to have > clear semantics and generic syntax. +++ The choice of value/ref should always be based on (human) semantics _only_. Any other design (of language or app) is wrong. Denis -- -- -- -- -- -- -- vit esse estrany ☣ spir.wikidot.com
