On Sun, 18 Sep 2011 22:09:19 +0200, Andrei Alexandrescu
<seewebsiteforem...@erdani.org> wrote:
On 9/18/11 2:46 PM, Nick Sabalausky wrote:
"Timon Gehr"<timon.g...@gmx.ch> wrote in message
news:j55h4f$1ia5$1...@digitalmars.com...
The only advantages slices have left
are (a) type syntax, i.e. T[] instead of Slice!T, (b) literal syntax,
i.e. [ 1, 2, 3 ] instead of slice(1, 2, 3), and (c) a couple of stray
language bugs such as '$'.
I am thankful for $, as it is a great feature, and it really should be
made accessible to user defined types. Either through opDollar or the
rewrite a[foo($)] => a[foo(a.length)]. What makes it qualify as a
stray
language bug to you?
He's saying that one of the few advantages slices have left over
user-defined types is that, for slices, $ actually works. The bug is
that it
doesn't work for user-defined types.
FWIW, I like the rewrite idea far better than opDollar.
opDollar is more powerful because it can be made to work with infinite
ranges.
Also, multi-dimensional structures:
RectangularArray!int a = [[1,2,3], [4,5,6,7]];
int b = a[$-1, $-2];
Those are obviously different $s.
--
Simen
