DMD 0.170 release

[Oskar Linde]

Bill Baxter wrote:
> Oskar Linde wrote:
>> Walter Bright wrote:
>>
>>> Bill Baxter wrote:
>>>
>>>> I don't see how it helps.  If you can already do:
>>>>    foreach(T item; &collection.reversed()) { }
>>>
>>>
>>> That doesn't work for arrays.
>>
>>
>> In what way does it not work? I have been doing:
>>
>> foreach(x; "abcd".reverseView())
>>     writef("%s",x);
>>
>> prints "dcba"
>>
>> For any type of built in array for a very long time (long before 
>> 0.170), and it certainly seems to work for me.
> 
> How do you do that?  I just get
> : undefined identifier reverseView
> : function expected before (), not reverseView of type int
> : cannot infer type for x

Sorry. I wasn't very clear on this in my post. Here is a simple 
implementation that runs:

struct ReverseIterator(T:T[]) {
     T[] array;

     int opApply(int delegate(inout T) dg) {
         for (int i = array.length-1; i >= 0; i--) {
             if (auto status = dg(array[i]))
                 return status;
         }
         return 0;
     }
}

ReverseIterator!(Array) reverseView(Array)(Array array) {
     ReverseIterator!(Array) iter; // = {array} => ICE
     iter.array = array;
     return iter;
}

import std.stdio;
void main() {
     foreach(x; "abcd".reverseView())
         writef("%s",x);
}