automate tuple creation

[H. S. Teoh]

On Thu, Jan 20, 2022 at 12:12:56AM +0000, forkit via Digitalmars-d-learn wrote:
[...]
> createBoolAssociativeMatrix(mArrBool,3, 2);
> 
> [ [1000:[1, 0]], [1001:[1, 1]], [1001:[1, 0]]]
> 
> 
> where 1000 is some random id...

Do the id's have to be unique?  If not, std.random.uniform() would do
the job.

If they have to be unique, you can either use a sequential global
counter (a 64-bit counter will suffice -- you'll won't exhaust it for at
least 60+ years of bumping the counter once per CPU tick at 8.4 GHz), or
use an AA of ids already generated and just call uniform() to generate a
new one until it doesn't collide anymore.


T

-- 
A mathematician learns more and more about less and less, until he knows everything about nothing; whereas a philospher learns less and less about more and more, until he knows nothing about everything.