GenaroSanada

Keybase proof

I hereby claim:

• I am genarosanada on github.
• I am waylon_keepshh (https://keybase.io/waylon_keepshh) on keybase.
• I have a public key ASC_6Zr-tWMVgaXDtUs7gE_rxz201WSe0P8H_JRDMJ-zvwo

To claim this, I am signing this object:

GenaroSanada

pragma solidity ^0.4.13;

/**
 * Math operations with safety checks
 */
contract SafeMath {
  function safeMul(uint a, uint b) internal returns (uint) {
    uint c = a * b;
    assert(a == 0 || c / a == b);
    return c;