Bill Baxter wrote:
On Sun, Feb 22, 2009 at 5:11 AM, Andrei Alexandrescu
<[email protected]> wrote:
Bill Baxter wrote:
On Sun, Feb 22, 2009 at 4:00 AM, Andrei Alexandrescu
<[email protected]> wrote:
Jarrett Billingsley wrote:
On Sat, Feb 21, 2009 at 12:32 PM, Andrei Alexandrescu
<[email protected]> wrote:
Yah. Walter agrees that that's the right thing to do. The only thing
that
worries us is passing by-value large statically-sized vectors to
template
functions. But then gaming code wants to do exactly that.
I don't follow you. Wouldn't they rather pass such huge chunks of
data by reference?
--bb
What I'm saying (sorry for being unclear) is:
1. If we choose T[N] as a value type, the downside is that people may pass
large arrays by values to e.g. template functions.
2. The upside is that gaming programmers DO want to pass short arrays of
type T[N] by value.
The conundrum is that a type system can't say that T[N] has some semantics
for N <= Nmax and some other semantics for N > Nmax. So we need to pick one,
and probably picking the value semantics is the right thing to do.
Ok. And for large static arrays you can still explicitly use ref, right?
Yah, ref on the callee side, or the [] operator without any arguments on
the caller side.
Andrei
