pragma solidity ^0.4.11; import '../../contracts/math/SafeMath.sol'; contract SafeMathMock { uint public result; function multiply(uint a, uint b) { result = SafeMath.mul(a, b); } function subtract(uint a, uint b) { result = SafeMath.sub(a, b); } function add(uint a, uint b) { result = SafeMath.add(a, b); } }