| Operation | Code |
|---|---|
| To remove last set bit | x & ( x - 1 ) |
| To double | x <<= 1 |
| To halve | x >>= 1 |
| To lowercase | x | ‘ ‘ |
| To togglecase | x ^ ‘ ‘ |
| Is power of two? | x && !(x & (x-1) ) |
| log base 2 ( brian kern algorithm) | int res = 0; while (x >>= 1) res++; return res; |
| multiply by 7 | ( (x<<3) - x ) |
Last active
July 30, 2020 05:31
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Bitwise Tricks with CPP
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