Clone-pattern immutable args: reading a calldata offset and shifting to the bytes you want
We continued the Panoptic contest on Code4rena.
Lesson Summary:
- Offset is the byte position in calldata where immutable arguments start. It's used by the Clone pattern to read immutable args.
- Calldata loads 32 bytes at a time. When you load 32 bytes from an offset, you then shift by whatever amount is needed to isolate the bytes you actually want.
- One epoch is 4 seconds.
- Strengthen your knowledge of bits, bytes and shifting.
- Try to memorise the variables; if it helps, close your eyes and recite them. This matters for holding context.