[libc] Cleaned up wcsspn and wcscspn#147408

Merged

sribee8 merged 10 commits intollvm:mainfrom

sribee8:wcsspn-cspn-fixes

Jul 22, 2025

Commits on Jul 7, 2025

[libc] Cleaned up wcsspn and wcscspn
Sriya Pratipati
committed
moved check function to wchar_utils
Sriya Pratipati
committed
moved check_span into namespaces
Sriya Pratipati
committed

Commits on Jul 8, 2025

renamed function
Sriya Pratipati
committed

Commits on Jul 9, 2025

simplified logic
Sriya Pratipati
committed
added more descriptive comment
Sriya Pratipati
committed

Commits on Jul 17, 2025

added nullptr handling and made functions static
Sriya Pratipati
committed
updated cmake file
Sriya Pratipati
committed

Commits on Jul 21, 2025