Annotated for each

[PaulGannay]

PR to merge the work of @blegouix done in #708.
I can't update the original PR since I don't have writing rights over https://github.com/blegouix/ddc/ nor https://github.com/CExA-project/ddc.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.85%. Comparing base (8b65e04) to head (b0ef625).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #974      +/-   ##
==========================================
+ Coverage   91.76%   91.85%   +0.09%     
==========================================
  Files          57       57              
  Lines        2756     2788      +32     
  Branches      924      927       +3     
==========================================
+ Hits         2529     2561      +32     
  Misses        136      136              
  Partials       91       91              

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[tpadioleau]

Please update the implementations so that they can support iterating over other kind of domains, like a DiscreteSparseDomain. A copy paste of for_each_serial/transform_reduce_serial should be enough.

[tpadioleau]

I put it back to draft the time to make the changes.