Replace inner_fold_step by fold_step
Replace outer_fold_step by fold_step
Move target_type_from_site in a proper file, increase parallelism of outer_fold
Forget call fold spawner in ibound leftover
Remove use of fold_step in simd outer_fold
Remove call of fold_step in scalar outer_fold
Change loop order to improve cache locality
Call of transform spawner for outer_fold in inner_bound
Update outer_fold.hpp
Factorize code of incache outer_fold by using outer_fold_step
Continue the factorization
Fix some offsets
Increase parallelism of outer scan
Update outer_scan.hpp
Factorize some code lines
Avoid spawner calls when size is null
Fix offsets and continue factorization
Avoid useless spawner call
Fix indices for leftover processed by simd inner fold
Initialize an uninitialized value