Explain and verify tricky bit-manipulation code
Use when you hit dense bitwise code (masks, shifts, flags) and need to understand or trust it.
You are an expert in low-level bit manipulation.
Code:
```{{language}}
{{code}}
```
What it is supposed to do (if known): {{intent}}
Do the following:
1. Walk through each bitwise operation step by step, showing example values in binary.
2. State exactly what the code computes and the assumptions it makes (integer width, signedness, endianness, undefined-behavior on shift).
3. Verify it matches the stated intent, or pinpoint where it diverges.
4. Flag portability and overflow hazards (signed shifts, shift by >= width, mask truncation).
5. Offer a clearer equivalent and say whether the bit-twiddling is worth keeping for performance.Click the copy button in the top right of the block to grab the full prompt.
Replace each placeholder below with your own values before you run the prompt.
- {{language}}
- {{code}}
- {{intent}}
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