ankit-trakinvest

pragma solidity ^0.4.18;

/* taking ideas from Zeppelin solidity module */
contract SafeMath {

    // it is recommended to define functions which can neither read the state of blockchain nor write in it as pure instead of constant

    function safeAdd(uint256 x, uint256 y) internal pure returns(uint256) {
        uint256 z = x + y;
        assert((z >= x));

ankit-trakinvest

pragma solidity ^0.4.18;

/* taking ideas from Zeppelin solidity module */
contract SafeMath {

    // it is recommended to define functions which can neither read the state of blockchain nor write in it as pure instead of constant

    function safeAdd(uint256 x, uint256 y) internal pure returns(uint256) {
        uint256 z = x + y;
        assert((z >= x));