Cairo Storage Optimization

Overview

Show how to reduce storage costs by packing multiple values into one slot and manipulating bits safely.

Quick Use

• Read references/storage-optimization.md before answering.
• Use shift and mask operations with core::integer::bitwise or arithmetic.
• Mention StorePacking for automatic packing where appropriate.

Response Checklist

• Ensure packed values fit within 251 bits total.
• Use explicit masks and shifts for extraction.
• Consider a custom struct with StorePacking for reusable packing logic.

Example Requests

• "How do I pack two u128 values into one storage slot?"
• "What is StorePacking in Cairo?"
• "How do I unpack a packed storage value?"