[Issue 4085] Steps toward a static foreach
d-bugmail at puremagic.com
d-bugmail at puremagic.com
Fri Jul 26 00:27:50 PDT 2013
http://d.puremagic.com/issues/show_bug.cgi?id=4085
--- Comment #8 from monarchdodra at gmail.com 2013-07-26 00:27:42 PDT ---
(In reply to comment #7)
> (In reply to comment #4)
>
> > Copy pasting a proposed implementation from 10712. Pretty much the same thing,
> > but also handles indiscriminate types. It passes the prior tests, as well as
> > handles the useage with doubles, or chars:
>
> Just a reminder: elsewhere I asked for an improvement to iota(), to let it
> optionally accept a string (like std.random.uniform) that allows to generate
> complete intervals of a type or handy closed intervals:
>
> iota!"[]"('a', 'z')
> iota!"[]"(cast(ubyte)0, cast(ubyte)255)
http://d.puremagic.com/issues/show_bug.cgi?id=10466
I've taken note. I think it is a good idea, but it might be difficult to
implement what with all the overloads.
> Currently I think it's impossible to generate the full range of a type like
> ubyes with iota, and it's not handy to generate the complete range of lowercase
> char letters, you need to use iota('a', '{'), that currently doesn't work for
> other reasons.
http://d.puremagic.com/issues/show_bug.cgi?id=6447
http://d.puremagic.com/issues/show_bug.cgi?id=9447
Fixing the issue of iota and "non built-in integral" is on my "todo" list.
BTW, you could also write it as (provided char is accepted at all):
iota('a', cast(char)('f' + 1))
or
iota!(char,char)('a', 'f'+1);
But in both cases, integral promotion kind of gets in the way of "clean" code
:/
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