Using shared memory and thread

[bioinfornatics]

On Monday, 4 November 2019 at 22:19:29 UTC, bioinfornatics wrote:
> On Monday, 4 November 2019 at 21:53:45 UTC, bioinfornatics 
> wrote:
>> On Monday, 4 November 2019 at 19:53:29 UTC, bioinfornatics 
>> wrote:
>>> Dear,
>>>
>>> I would like to put a buffer `shared(char[])` into a shared 
>>> memory ( L2 cache ) and provide a start and end index to 
>>> multiple thread in order to perform computation on a piece of 
>>> original buffer.
>>>
>>> [...]
>>
>> One image reveals more than a thousand words, see my picture 
>> :-)
>>    -> http://pix.toile-libre.org/?img=1572906675.png
>
> oups got a problem with the alpha layer:
>    -> http://pix.toile-libre.org/?img=1572908302.png

here my (not working) snippet code:
    -> https://run.dlang.io/gist/75429dcb8612e00635f7d53aabc4776f

the example do not meet exactly the spec and he do not compile.