makeIndex not working

[Johann MacDonagh]

On 7/2/2011 10:22 PM, Jonathan M Davis wrote:
> On 2011-07-02 18:14, Johann MacDonagh wrote:
>> On 7/2/2011 9:00 PM, Johann MacDonagh wrote:
>>> On 7/2/2011 9:00 PM, bearophile wrote:
>>>> Johann MacDonagh:
>>>>> I'm confused, what am I doing wrong here?
>>>>
>>>> I think that Phobos needs way more&better unittests.
>>>>
>>>> I think the error you receive reduces to this:
>>>>
>>>> import std.range: isForwardRange;
>>>>
>>>> void foo(R)(R r) if (isForwardRange!R) {}
>>>>
>>>> void main() {
>>>> immutable arr = [1, 2];
>>>> foo(arr);
>>>> }
>>>>
>>>> Bye,
>>>> bearophile
>>>
>>> Strangely enough there is a unit test for this...
>>> https://github.com/D-Programming-Language/phobos/blob/phobos-2.053/std/al
>>> gorithm.d#L6742
>>>
>>>
>>> Does this code fail to compile for you too? I want to make sure I didn't
>>> mess up my config here.
>>
>> Ah, here we go:
>>
>> http://d.puremagic.com/issues/show_bug.cgi?id=6148
>>
>> Replacing immutable with auto works. I'm still confused how the phobos
>> unit tests pass though...
>
> That's because they're using immutable(int)[], not immutable int[]. The
> elements in the range are immutable, but the range is not. Whereas with
> immutable int[], the whole thing is immutable, so it doesn't work. The range
> has to be mutable.
>
> - Jonathan M Davis

Ah! How could I miss that? Some of the examples in std.algorithm should 
be updated to reflect this at least until that bug is fixed.