SafeMath

library SafeMath

Math operations with safety checks that throw on error.

Source: contracts/2key/libraries/SafeMath.sol

Index

• add
• div
• mul
• sub

Reference

Functions

• add

  function add(uint256 _a, uint256 _b) internal pure returns (uint256)

  ---

  Adds two numbers, throws on overflow.

  Parameters:

  _a - uint256

  _b - uint256

  Returns:

  uint256

• div

  function div(uint256 _a, uint256 _b) internal pure returns (uint256)

  ---

  Integer division of two numbers, truncating the quotient.

  Parameters:

  _a - uint256

  _b - uint256

  Returns:

  uint256

• mul

  function mul(uint256 _a, uint256 _b) internal pure returns (uint256)

  ---

  Multiplies two numbers, throws on overflow.

  Parameters:

  _a - uint256

  _b - uint256

  Returns:

  uint256

• sub

  function sub(uint256 _a, uint256 _b) internal pure returns (uint256)

  ---

  Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).

  Parameters:

  _a - uint256

  _b - uint256

  Returns:

  uint256