Go and generic programming on reddit, also touches on D

Andrei Alexandrescu SeeWebsiteForEmail at erdani.org
Sun Sep 18 13:09:19 PDT 2011


On 9/18/11 2:46 PM, Nick Sabalausky wrote:
> "Timon Gehr"<timon.gehr at gmx.ch>  wrote in message
> news:j55h4f$1ia5$1 at digitalmars.com...
>>
>>> The only advantages slices have left
>>> are (a) type syntax, i.e. T[] instead of Slice!T, (b) literal syntax,
>>> i.e. [ 1, 2, 3 ] instead of slice(1, 2, 3), and (c) a couple of stray
>>> language bugs such as '$'.
>>
>> 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.

Andrei


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