Cairo Panic

Overview

Explain how panics work in Cairo, how to trigger them, and how to constrain panic behavior.

Quick Use

• Read references/panic.md before answering.
• Choose the smallest panic API that fits the error message you need.
• Mention nopanic requirements when a caller demands panic-free code.

Response Checklist

• Use panic for array-based errors, panic_with_felt252 for a single felt, and panic! for strings.
• Note that panic unwinds, drops variables, and squashes dictionaries.
• Use #[panic_with(...)] for wrapper functions that panic on None or Err.

Example Requests

• "How do I panic with a short error code?"
• "What does nopanic mean?"
• "How do I create a wrapper that panics on None?"

Cairo by Example

• Error handling
• panic
• panic! (core)