xels2
xels2
/ gist:afec8150b92ca25c0ac987c09e989f58
Created
December 20, 2017 13:39
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| pragma solidity ^0.4.18; | |
| /** | |
| * Math operations with safety checks | |
| */ | |
| library SafeMath | |
| { | |
| function mul(uint256 a, uint256 b) internal pure | |
| returns (uint256) | |
| { |