LowGasSafeMath

Contains methods for doing math operations that revert on overflow or underflow for minimal gas cost

Functions​

add​

  function add(
    uint256 x,
    uint256 y
  ) internal pure returns (uint256 z)

Returns x + y, reverts if sum overflows uint256

Parameters:​

Name	Type	Description
x	uint256	The augend
y	uint256	The addend

Return Values:​

Name	Type	Description
z	uint256	The sum of x and y

sub​

  function sub(
    uint256 x,
    uint256 y
  ) internal pure returns (uint256 z)

Returns x - y, reverts if underflows

Parameters:​

Name	Type	Description
x	uint256	The minuend
y	uint256	The subtrahend

Return Values:​

Name	Type	Description
z	uint256	The difference of x and y

mul​

  function mul(
    uint256 x,
    uint256 y
  ) internal pure returns (uint256 z)

Returns x * y, reverts if overflows

Parameters:​

Name	Type	Description
x	uint256	The multiplicand
y	uint256	The multiplier

Return Values:​

Name	Type	Description
z	uint256	The product of x and y

add​

  function add(
    int256 x,
    int256 y
  ) internal pure returns (int256 z)

Returns x + y, reverts if overflows or underflows

Parameters:​

Name	Type	Description
x	int256	The augend
y	int256	The addend

Return Values:​

Name	Type	Description
z	int256	The sum of x and y

sub​

  function sub(
    int256 x,
    int256 y
  ) internal pure returns (int256 z)

Returns x - y, reverts if overflows or underflows

Parameters:​

Name	Type	Description
x	int256	The minuend
y	int256	The subtrahend

Return Values:​

Name	Type	Description
z	int256	The difference of x and y