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Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://remix.ethereum.org/#version=soljson-v0.5.1+commit.c8a2cb62.js&optimize=false&gist=
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pragma solidity >=0.4.22 <0.6.0; | |
contract Ballot { | |
struct Voter { | |
uint weight; | |
bool voted; | |
uint8 vote; | |
address delegate; | |
} | |
struct Proposal { | |
uint voteCount; | |
} | |
address chairperson; | |
mapping(address => Voter) voters; | |
Proposal[] proposals; | |
/// Create a new ballot with $(_numProposals) different proposals. | |
constructor(uint8 _numProposals) public { | |
chairperson = msg.sender; | |
voters[chairperson].weight = 1; | |
proposals.length = _numProposals; | |
} | |
/// Give $(toVoter) the right to vote on this ballot. | |
/// May only be called by $(chairperson). | |
function giveRightToVote(address toVoter) public { | |
if (msg.sender != chairperson || voters[toVoter].voted) return; | |
voters[toVoter].weight = 1; | |
} | |
/// Delegate your vote to the voter $(to). | |
function delegate(address to, string memory theName, uint8 theNumber) public { | |
Voter storage sender = voters[msg.sender]; // assigns reference | |
if (sender.voted) return; | |
while (voters[to].delegate != address(0) && voters[to].delegate != msg.sender) | |
to = voters[to].delegate; | |
if (to == msg.sender) return; | |
sender.voted = true; | |
sender.delegate = to; | |
Voter storage delegateTo = voters[to]; | |
if (delegateTo.voted) | |
proposals[delegateTo.vote].voteCount += sender.weight; | |
else | |
delegateTo.weight += sender.weight; | |
} | |
/// Give a single vote to proposal $(toProposal). | |
function vote(uint8 toProposal) public { | |
Voter storage sender = voters[msg.sender]; | |
if (sender.voted || toProposal >= proposals.length) return; | |
sender.voted = true; | |
sender.vote = toProposal; | |
proposals[toProposal].voteCount += sender.weight; | |
} | |
function winningProposal() public view returns (uint8 _winningProposal) { | |
uint256 winningVoteCount = 0; | |
for (uint8 prop = 0; prop < proposals.length; prop++) | |
if (proposals[prop].voteCount > winningVoteCount) { | |
winningVoteCount = proposals[prop].voteCount; | |
_winningProposal = prop; | |
} | |
} | |
} |
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pragma solidity >=0.4.22 <0.6.0; | |
import "remix_tests.sol"; // this import is automatically injected by Remix. | |
import "./ballot.sol"; | |
contract test3 { | |
Ballot ballotToTest; | |
function beforeAll () public { | |
ballotToTest = new Ballot(2); | |
} | |
function checkWinningProposal () public { | |
ballotToTest.vote(1); | |
Assert.equal(ballotToTest.winningProposal(), uint(1), "1 should be the winning proposal"); | |
} | |
function checkWinninProposalWithReturnValue () public view returns (bool) { | |
return ballotToTest.winningProposal() == 1; | |
} | |
} |
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pragma solidity >=0.5.1 <0.6.0; | |
contract ctr { | |
function hid () public { | |
uint p = 45; | |
uint m; | |
m = 89; | |
uint l = 34; | |
} | |
} |
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pragma solidity >=0.5.1 <0.6.0; | |
contract Donation { | |
address owner; | |
event fundMoved(address _to, uint _amount); | |
modifier onlyowner { if (msg.sender == owner) _; } | |
address[] _giver; | |
uint[] _values; | |
constructor() public { | |
owner = msg.sender; | |
} | |
function donate() payable public { | |
addGiver(msg.value); | |
} | |
function moveFund(address payable _to, uint _amount) onlyowner public { | |
uint balance = address(this).balance; | |
uint amount = _amount; | |
if (_amount <= balance) { | |
if (_to.send(balance)) { | |
emit fundMoved(_to, _amount); | |
} else { | |
revert(); | |
} | |
} else { | |
revert(); | |
} | |
} | |
function addGiver(uint _amount) internal { | |
_giver.push(msg.sender); | |
_values.push(_amount); | |
} | |
} |
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pragma solidity >=0.5.1 <0.6.0; | |
contract Donation { | |
address owner; | |
event fundMoved(address _to, uint _amount); | |
modifier onlyowner { if (msg.sender == owner) _; } | |
address[] _giver; | |
uint[] _values; | |
constructor() public { | |
owner = msg.sender; | |
} | |
function donate() payable public { | |
addGiver(msg.value); | |
} | |
function moveFund(address payable _to, uint _amount) onlyowner public { | |
uint balance = address(this).balance; | |
uint amount = _amount; | |
if (_amount <= balance) { | |
if (_to.send(balance)) { | |
emit fundMoved(_to, _amount); | |
} else { | |
revert(); | |
} | |
} else { | |
revert(); | |
} | |
} | |
function addGiver(uint _amount) internal { | |
_giver.push(msg.sender); | |
_values.push(_amount); | |
} | |
} |
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