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Solidity Bug Info

Bug Name Description Severity
DoubleShiftSizeOverflow
Double bitwise shifts by large constants whose sum overflows 256 bits can result in unexpected values.
Nested logical shift operations whose total shift size is 2**256 or more are incorrectly optimized. This only applies to shifts by numbers of bits that are compile-time constant expressions.

- Link: https://blog.soliditylang.org/2019/03/26/solidity-optimizer-and-abiencoderv2-bug/
- First Introduced: 0.5.5
- Fixed in Version: 0.5.6
- Published:
- Severity<: low
- Optimizer Used: true

low