StorageBytes.checked_add: def of mylsm-lsm-store@0.6.0.1
Import: import mylsm-lsm-store@0.6.0.1/src/StorageBytes.bend as StorageBytes
Lines 76-78 of mylsm-lsm-store@0.6.0.1/src/StorageBytes.bend: https://jend.leeeet.dev/read.txt?path=mylsm-lsm-store@0.6.0.1/src/StorageBytes.bend&start_line=76&end_line=78

import Base

# Return None rather than wrapping when U32 addition overflows.
def checked_add(+left: U32, +right: U32) -> Maybe<&2, U32>:
  Bool.pick(Maybe<&2, U32>, U32.is_le(left, (4294967295 - right : U32)), Some{(left + right : U32)}, None{})

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.pick
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_le
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.sub