/* * @source: https://github.com/trailofbits/not-so-smart-contracts/blob/master/integer_overflow/integer_overflow_1.sol * @author: - * @vulnerable_at_lines: 14 */ pragma solidity ^0.4.15; contract Overflow { uint private sellerBalance=0; function add(uint value) returns (bool){ // ARITHMETIC sellerBalance += value; // possible overflow // possible auditor assert // assert(sellerBalance >= value); } // function safe_add(uint value) returns (bool){ // require(value + sellerBalance >= sellerBalance); // sellerBalance += value; // } }