Walkthrough

Updates function pointer casting patterns across multiple modules to use explicit intermediate pointer casts (*const ()) before final type conversion. Changes affect signal handler registration, hash sentinel detection, memory function address computation, and method descriptor comparison.

Changes

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• Faulthandler #6406: Modifies signal-handling code in faulthandler.rs; this PR adjusts function-pointer cast patterns for the same handler-wiring code paths.
• Faulthandler #6400: Overlaps with faulthandler.rs changes; both PRs modify signal-handler installation and casting logic.
• __hash__ to slot_wrapper #6480: Related through class.rs __hash__ slot handling; this PR refines the pointer cast used for hash_not_implemented sentinel detection.

Suggested reviewers

• ShaharNaveh
• arihant2math

Poem

🐰 Through pointers cast with careful care,
Each function finds its destined lair,
No direct leaps, just steps between,
The safest path our code has seen! ✨

• 📝 Generate docstrings

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