On Thursday, 16 November 2017 at 08:26:25 UTC, Andrea Fontana
wrote:
On Thursday, 16 November 2017 at 08:03:48 UTC, Tony wrote:
I made a stack data type and created an opIndex() so it could
be turned into a dynamic array, and created empty()
(unfortunate name), front() and popFront() methods, which I
read allow it to be used with foreach.
However, when I use the class with foreach, the opindex gets
called to create a dynamic array, rather than use the
empty(),front(),popFront() routines. I would prefer it use the
three methods, rather than create a dynamic array.
You can try to implement opApply().
Check:
http://ddili.org/ders/d.en/foreach_opapply.html
Thanks. Interesting that that page does not mention the behavior
I am seeing, which is that foreach over a user-defined datatype
can be implemented with only a 'T[] opIndex()' method.
