Any chance to call Tango as Extended Standard Library

Denis Koroskin 2korden at gmail.com
Sun Jan 18 07:57:27 PST 2009


On Sun, 18 Jan 2009 18:21:55 +0300, Andrei Alexandrescu <SeeWebsiteForEmail at erdani.org> wrote:

> Lars Ivar Igesund wrote:
>> Andrei Alexandrescu wrote:
>>
>>> For example, I'm not sure how code in std.algorithm could help
>>> containers or streams in Tango (as it should), or how to reconcile
>>> std.algorithm with std.core.array.
>>  If the language (D2++) will have a new way of iteration and ranges
>> known and enforced by the compiler, then I expect Tango to support
>> those at some point, and std.algorithm would presumably just work.
>> However, if it is based on some interface, ad hoc (these methods must
>> be present) or properly via an interface Range { }, I would expect
>> Tango developers to be involved in the process of defining those
>> interfaces (if Tango is meant to use/know about them). Since I have
>> seen neither, it is somewhat difficult to make a well informed
>> comment on the subject.
>
> It's been there for a while now (since 25 Nov 2008).
>
> http://www.digitalmars.com/d/2.0/statement.html#ForeachStatement
>
> Scroll down to "Foreach over Structs and Classes with Ranges". The  
> changelog reflects that too:
>
> http://www.digitalmars.com/d/2.0/changelog.html
>
> Version 2.021 mentions "Added range support to foreach statement."
>
>
> Andrei

There is a typo in docs (http://www.digitalmars.com/d/2.0/statement.html#ForeachStatement):

Foreach Range Properties:
.rear	return the rightmost element of the range

...

for (auto __r = range; !__r.empty; __r.retreat)
{   auto e = __r.tail; //<- tail or rear?
   ...
}




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