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Created using browser-solidity: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://ethereum.github.io/browser-solidity/#version=soljson-v0.4.17+commit.bdeb9e52.js&optimize=undefined&gist=
pragma solidity ^0.4.6;
contract tokenRecipient {function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData);}
contract MCAP {
/* Public variables of the token */
string public standard = 'MCAP 1.0';
string public name;
string public symbol;
uint8 public decimals;
uint256 public totalSupply;
address public owner;
/* This creates an array with all balances */
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
/* This generates a public event on the blockchain that will notify clients */
event Transfer(address indexed from, address indexed to, uint256 value);
/* Initializes contract with initial supply tokens to the creator of the contract */
function MCAP(
uint256 initialSupply,
string tokenName,
uint8 decimalUnits,
string tokenSymbol
) {
balanceOf[msg.sender] = initialSupply;
// Give the creator all initial tokens
totalSupply = initialSupply;
// Update total supply
name = tokenName;
// Set the name for display purposes
symbol = tokenSymbol;
// Set the symbol for display purposes
decimals = decimalUnits;
// Amount of decimals for display purposes
owner=msg.sender;
}
modifier onlyOwner {
if (msg.sender != owner) throw;
_;
}
/* Send coins */
function transfer(address _to, uint256 _value) {
if (_to == 0x0) throw;
// Prevent transfer to 0x0 address
if (balanceOf[msg.sender] < _value) throw;
// Check if the sender has enough
if (balanceOf[_to] + _value < balanceOf[_to]) throw;
// Check for overflows
balanceOf[msg.sender] -= _value;
// Subtract from the sender
balanceOf[_to] += _value;
// Add the same to the recipient
Transfer(msg.sender, _to, _value);
// Notify anyone listening that this transfer took place
}
/* Allow another contract to spend some tokens in your behalf */
function approve(address _spender, uint256 _value)
returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/* Approve and then comunicate the approved contract in a single tx */
function approveAndCall(address _spender, uint256 _value, bytes _extraData)
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, this, _extraData);
return true;
}
}
/* A contract attempts to get the coins */
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {
if (_to == 0x0) throw;
// Prevent transfer to 0x0 address
if (balanceOf[_from] < _value) throw;
// Check if the sender has enough
if (balanceOf[_to] + _value < balanceOf[_to]) throw;
// Check for overflows
if (_value > allowance[_from][msg.sender]) throw;
// Check allowance
balanceOf[_from] -= _value;
// Subtract from the sender
balanceOf[_to] += _value;
// Add the same to the recipient
allowance[_from][msg.sender] -= _value;
Transfer(_from, _to, _value);
return true;
}
}
pragma solidity ^0.4.6;
contract tokenRecipient {function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData);}
contract MCAP {
/* Public variables of the token */
string public standard = 'MCAP 1.0';
string public name;
string public symbol;
uint8 public decimals;
uint256 public totalSupply;
address public owner;
/* This creates an array with all balances */
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
/* This generates a public event on the blockchain that will notify clients */
event Transfer(address indexed from, address indexed to, uint256 value);
/* Initializes contract with initial supply tokens to the creator of the contract */
function MCAP(
uint256 initialSupply,
string tokenName,
uint8 decimalUnits,
string tokenSymbol
) {
balanceOf[msg.sender] = initialSupply;
// Give the creator all initial tokens
totalSupply = initialSupply;
// Update total supply
name = tokenName;
// Set the name for display purposes
symbol = tokenSymbol;
// Set the symbol for display purposes
decimals = decimalUnits;
// Amount of decimals for display purposes
owner=msg.sender;
}
modifier onlyOwner {
if (msg.sender != owner) throw;
_;
}
/* Send coins */
function transfer(address _to, uint256 _value) {
if (_to == 0x0) throw;
// Prevent transfer to 0x0 address
if (balanceOf[msg.sender] < _value) throw;
// Check if the sender has enough
if (balanceOf[_to] + _value < balanceOf[_to]) throw;
// Check for overflows
balanceOf[msg.sender] -= _value;
// Subtract from the sender
balanceOf[_to] += _value;
// Add the same to the recipient
Transfer(msg.sender, _to, _value);
// Notify anyone listening that this transfer took place
}
/* Allow another contract to spend some tokens in your behalf */
function approve(address _spender, uint256 _value)
returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/* Approve and then comunicate the approved contract in a single tx */
function approveAndCall(address _spender, uint256 _value, bytes _extraData)
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, this, _extraData);
return true;
}
}
/* A contract attempts to get the coins */
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {
if (_to == 0x0) throw;
// Prevent transfer to 0x0 address
if (balanceOf[_from] < _value) throw;
// Check if the sender has enough
if (balanceOf[_to] + _value < balanceOf[_to]) throw;
// Check for overflows
if (_value > allowance[_from][msg.sender]) throw;
// Check allowance
balanceOf[_from] -= _value;
// Subtract from the sender
balanceOf[_to] += _value;
// Add the same to the recipient
allowance[_from][msg.sender] -= _value;
Transfer(_from, _to, _value);
return true;
}
}
pragma solidity ^0.4.0;
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.
function Ballot(uint8 _numProposals) {
chairperson = msg.sender;
voters[chairperson].weight = 1;
proposals.length = _numProposals;
}
/// Give $(voter) the right to vote on this ballot.
/// May only be called by $(chairperson).
function giveRightToVote(address voter) {
if (msg.sender != chairperson || voters[voter].voted) return;
voters[voter].weight = 1;
}
/// 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;
}
}
}
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