pragma solidity ^0.4.0; contract InfoFeed { function info() payable returns (uint ret); function call1(uint a) payable returns (bool); } contract Ballot { InfoFeed feed; struct Voter { uint weight; bool voted; uint8 vote; address delegate; } struct Proposal { uint voteCount; } address chairperson; mapping(address => Voter) voters; Proposal[] proposals; function send1(address a) { giveRightToVote(a,a); } /// Create a new ballot with $(_numProposals) different proposals. function Ballot(uint8 _numProposals) { address d; if(!d.delegatecall.gas(800)('function_name', 'arg1', 'arg2')) throw; if(!d.callcode.gas(800)('function_name', 'arg1', 'arg2')) throw; if(!d.call.value(10).gas(800)('function_name', 'arg1', 'arg2')) throw; if(!d.call.value(10).gas(800)('function_name', 'arg1', 'arg2')) throw; if(!msg.sender.send(1 wei)) throw; if(!d.call('function_name', 'arg1', 'arg2')) throw; uint a = now; uint c = block.timestamp; if(block.timestamp < 100){} chairperson = msg.sender; voters[chairperson].weight = 1; proposals.length = _numProposals; if(!d.send(1 wei)) throw; feed.info.value(10).gas(800)(); feed.call1(1); this.send1(d); } /// Give $(voter) the right to vote on this ballot. /// May only be called by $(chairperson). function giveRightToVote(address voter, address b) payable returns (bool){ if (msg.sender != chairperson || voters[voter].voted) return; voters[voter].weight = 1; return true; } /// Delegate your vote to the voter $(to). function delegate(address to) { Voter 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 delegate = voters[to]; if (delegate.voted) proposals[delegate.vote].voteCount += sender.weight; else delegate.weight += sender.weight; } /// Give a single vote to proposal $(proposal). function vote(uint8 proposal) { Voter sender = voters[msg.sender]; if (sender.voted || proposal >= proposals.length) return; sender.voted = true; sender.vote = proposal; proposals[proposal].voteCount += sender.weight; } function winningProposal() constant returns (uint8 winningProposal) { uint256 winningVoteCount = 0; for (uint8 proposal = 0; proposal < proposals.length; proposal++) if (proposals[proposal].voteCount > winningVoteCount) { winningVoteCount = proposals[proposal].voteCount; winningProposal = proposal; } } }