d1ll0n

0x2bf16b1275aab773bf22f1a5d03d56fa75e76ea713e8267cb2b1ed994d89793c

d1ll0n

In buidler.config.js add this:

usePlugin("@nomiclabs/buidler-web3");

You can do this with ethers but I am more familiar with web3, so that's what this example uses.

Also do:

d1ll0n

pragma solidity ^0.6.0;

/**
 * @dev Helper to make usage of the `CREATE2` EVM opcode easier and safer.
 * `CREATE2` can be used to compute in advance the address where a smart
 * contract will be deployed, which allows for interesting new mechanisms known
 * as 'counterfactual interactions'.
 *
 * See the https://eips.ethereum.org/EIPS/eip-1014#motivation[EIP] for more
 * information.

d1ll0n

pragma solidity ^0.6.0;

contract Log2 {
    /**
     * @dev Computes the log2 of a uint64
     * @author Formula taken from a stackoverflow post by Desmond Hume
     * https://stackoverflow.com/a/11398748
     */
    function log2(uint64 input) external view returns (byte) {
        

d1ll0n

pragma solidity ^0.5.0;

contract MultiHashSha256 {
  // https://github.com/pouladzade/Seriality/blob/master/src/BytesToTypes.sol
  function bytesToBytes32(uint _offst, bytes memory _input, bytes32 _output)
  internal pure {
    assembly {
      mstore(_output, add(_input, _offst))
      mstore(add(_output, 32), add(add(_input, _offst), 32))
    }

d1ll0n

pragma solidity ^0.5.7;

contract OrderMaker5000 {
  struct Order {
    address from;
    uint haveAmt;
    uint haveTokenIdx;
    uint wantAmt;
    uint wantTokenIdx;
  }

d1ll0n

pragma solidity ^0.4.25;
pragma experimental ABIEncoderV2;

library SafeMath {
  function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    if (a == 0) {
        return 0;
    }
    uint256 c = a * b;
    require(c / a == b);

d1ll0n

pragma solidity ^0.4.25;
pragma experimental ABIEncoderV2;

library SafeMath {
  function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    if (a == 0) {
        return 0;
    }
    uint256 c = a * b;
    require(c / a == b);

d1ll0n

pragma solidity ^0.5.5;

import "./strings.sol";

contract BetterNameService {
  using strings for string;

  struct TLDPrice {
    uint price;
    uint lastUpdate;