using memset withing a pure function

[D_Learner via Digitalmars-d-learn]

On Saturday, 15 August 2015 at 18:49:15 UTC, anonymous wrote:
> On Saturday, 15 August 2015 at 18:04:30 UTC, D_Learner wrote:
>> [...]
>
> Those two slices have different lengths (when shift != 0). They 
> must have equal lengths, and they must not overlap.
>
> [...]

Am now sorted. Thanks, your workout simplifies everything