Get the return type of the function

[xtreak via Digitalmars-d-learn]

On Thursday, 4 February 2016 at 05:50:05 UTC, tsbockman wrote:
> On Thursday, 4 February 2016 at 02:06:00 UTC, xtreak wrote:
>> On Wednesday, 3 February 2016 at 23:57:12 UTC, Ivan Kazmenko 
>> wrote:
>>> [...]
>>
>> Thanks for the reply. But the issue was about knowing the type 
>> of lambda in map. Most people won't enter the type of argument 
>> in a map. Is there a way to detect the return type will be non 
>> void. I don't need to know the type I just wanr to verify its 
>> not void. Yes * can be overloaded and can have different types 
>> based on the input having the overloaded operator implemented. 
>> I just want to check if the return type is not void.
>
> See my PR for a workaround: 
> https://github.com/D-Programming-Language/phobos/pull/3969/files

Thanks a lot for the patch. It will be helpful if you could 
explain the workaround as I am a newbie in D language.