On Tuesday, 10 December 2013 at 19:26:27 UTC, Andrei Alexandrescu
wrote:
On 12/10/13 10:59 AM, monarch_dodra wrote:
On Tuesday, 10 December 2013 at 17:28:26 UTC, Andrei
Alexandrescu
wrote:
We have only(x)
(http://dlang.org/phobos/std_range.html#.only) to be a
collection of exactly one value, but not a type for "a value
of type T
or nothing at all"
Option is being upgraded to handle an arbitrary (but compile
time
known) amount of values:
https://github.com/D-Programming-Language/phobos/pull/1743
Interesting! There is the problem one can't represent "no
element of type T" and "one element of type T" with the same
type.
Objects can do it pretty well. They even segfault to when you
forgot about it. in D that feature is integrated !
