0mkara

Contract Killer

The popular open-source contract for web designers and developers by Stuff & Nonsense

• Originally published: 23/12/2008
• Revised date: 15/12/2013
• Original post

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0mkara

Create your own Ethereum private network

Introduction

Used nodes:

Linux raspberrypi 4.9.41-v7+ #1023 SMP Tue Aug 8 16:00:15 BST 2017 armv7l GNU/Linux

Linux localhost.localdomain 4.14.5-200.fc26.x86_64 #1 SMP Mon Dec 11 16:29:08 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

0mkara

Native-DApps

Solidity

Type members

Raine Revere @raineorshine 23:39 I'm getting an out of gas error when I try to deploy a contract. It is not due to the control flow itself but seems to be due to the raw size of the contract. Is it possible for the bytecode to get too big at a certain point to deploy? Any recommendations? Does splitting a contract into libraries get around this issue? Thanks.

Nick Johnson @Arachnid 00:10 Yes, it is, and yes, it does.

0mkara

cat > ~/.gitconfig <<EOF
[github]
  user = zelig
  token = 
[user]
        name = zelig
        email = [email protected]
[core]
  pager = less -FRX
[color]

0mkara

//
// The new assembly support in Solidity makes writing helpers easy.
// Many have complained how complex it is to use `ecrecover`, especially in conjunction
// with the `eth_sign` RPC call. Here is a helper, which makes that a matter of a single call.
//
// Sample input parameters:
// (with v=0)
// "0x47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad",
// "0xaca7da997ad177f040240cdccf6905b71ab16b74434388c3a72f34fd25d6439346b2bac274ff29b48b3ea6e2d04c1336eaceafda3c53ab483fc3ff12fac3ebf200",
// "0x0e5cb767cce09a7f3ca594df118aa519be5e2b5a"

0mkara

pragma solidity ^0.4.24;
import 'https://github.com/OpenZeppelin/zeppelin-solidity/contracts/token/ERC20/ERC20Mintable.sol';
import 'https://github.com/OpenZeppelin/zeppelin-solidity/contracts/ownership/Ownable.sol';
import "./Ballot.sol";

contract AwardToken is ERC20Mintable, Ownable {
    uint quantity;
    uint ballotPeriod = 7 hours;
    Ballot public currBallot;
    address[] public prevWinners;

0mkara

pragma solidity ^0.4.24;
import 'https://github.com/OpenZeppelin/zeppelin-solidity/contracts/math/SafeMath.sol';

/*
Using a proxy contract here allows revert-causing functions that contain
require() to return false rather than halt execution
https://truffleframework.com/tutorials/testing-for-throws-in-solidity-tests
*/
contract SafeMathProxy {
    using SafeMath for uint;

0mkara

pragma solidity ^0.4.7;
import "remix_tests.sol";
contract SimpleStorage {
  uint public storedData;

  function SimpleStorage() public {
    storedData = 100;
  }

  function set(uint x) public {

0mkara

pragma solidity ^0.5.0;
contract Mortal {
    /* Define variable owner of the type address */
    address payable owner;

    /* This function is executed at initialization and sets the owner of the contract */
    function mortal() public { owner = msg.sender; }

    /* Function to recover the funds on the contract */
    function kill() public { if (msg.sender == owner) selfdestruct(owner); }

0mkara

pragma solidity ^0.5.0;

contract Mortal {
    /* Define variable owner of the type address */
    address payable owner;

    /* This function is executed at initialization and sets the owner of the contract */
    function mortal() public { owner = msg.sender; }

    /* Function to recover the funds on the contract */