SignedMath

Standard signed math utilities missing in the Solidity language.

Functions

ternary

Branchless ternary evaluation for a ? b : c. Gas costs are constant. IMPORTANT: This function may reduce bytecode size and consume less gas when used standalone. However, the compiler may optimize Solidity ternary operations (i.e. a ? b : c) to only compute one branch when needed, making this function more expensive.

function ternary(bool condition, int256 a, int256 b) internal pure returns (int256);

max

Returns the largest of two signed numbers.

function max(int256 a, int256 b) internal pure returns (int256);

min

Returns the smallest of two signed numbers.

function min(int256 a, int256 b) internal pure returns (int256);

average

Returns the average of two signed numbers without overflow. The result is rounded towards zero.

function average(int256 a, int256 b) internal pure returns (int256);

abs

Returns the absolute unsigned value of a signed value.

function abs(int256 n) internal pure returns (uint256);