LiquidityMath
Functions#
addDelta#
  function addDelta(    uint128 x,    int128 y  ) internal pure returns (uint128 z)Add a signed liquidity delta to liquidity and revert if it overflows or underflows
Parameters:#
| Name | Type | Description | 
|---|---|---|
| x | uint128 | The liquidity before change | 
| y | int128 | The delta by which liquidity should be changed | 
Return Values:#
| Name | Type | Description | 
|---|---|---|
| z | uint128 | The liquidity delta |