Fix #1059 missing fastmath

[NimaSarajpoor]

See #1059

The functions with missing fastmath flags are:

• core._get_array_ranges
• core._get_ranges
• core._merge_topk_PI
• core._merge_topk_ρI
• core._shift_insert_at_index
• core._update_incremental_PI

[codecov]

Codecov Report

Attention: Patch coverage is 7.57576% with 61 lines in your changes missing coverage. Please review.

Project coverage is 96.97%. Comparing base (3165d1c) to head (de242d5).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
fastmath.py	0.00%	49 Missing ⚠️
stumpy/cache.py	0.00%	12 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1060      +/-   ##
==========================================
- Coverage   97.33%   96.97%   -0.36%     
==========================================
  Files          89       90       +1     
  Lines       15027    15104      +77     
==========================================
+ Hits        14626    14647      +21     
- Misses        401      457      +56     

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[seanlaw]

I did not look at the def check_fastmath function yet and I assume it is doing the right thing?

[NimaSarajpoor]

@seanlaw
I tried to make some changes according to our recent discussion. I left some comments to bring your attention to a few things.

[NimaSarajpoor]

@seanlaw
Can you please do a final check and merge if there is no concern and all tests are passing?

[seanlaw]

@seanlaw Can you please do a final check and merge if there is no concern and all tests are passing?

Will do! Thanks for pulling this together

[seanlaw]

Thanks @NimaSarajpoor. This has now been merged!

[NimaSarajpoor]

@seanlaw
Great! That was one good PR [for me]! Thanks for all of your inputs and suggestions.