Should this work?

[John Colvin]

On Thursday, 9 January 2014 at 14:34:43 UTC, John Colvin wrote:
> On Thursday, 9 January 2014 at 14:08:02 UTC, Manu wrote:
>> This works fine:
>>  string x = find("Hello", 'H');
>>
>> This doesn't:
>>  string y = find(retro("Hello"), 'H');
>>  > Error: cannot implicitly convert expression 
>> (find(retro("Hello"), 'H'))
>> of type Result!() to string
>
> In order to return the result as a string it would require an 
> allocation. You have to request that allocation (and associated 
> eager evaluation) explicitly
>
> string y = "Hello".retro.find('H').to!string;
>
>
> However, I think to get the expected result from unicode you 
> need
>
> string y = "Hello".byGrapheme.retro.find('H').to!string;
>
> but I might be wrong.

Oh. I see you actually wanted strrchr behaviour. That's different.