Created
December 29, 2017 18:14
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CMB Coin, ICO from cmbaughman
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pragma solidity ^0.4.4; | |
contract Token { | |
/// @return total amount of tokens | |
function totalSupply() constant returns (uint256 supply) {} | |
/// @param _owner The address from which the balance will be retrieved | |
/// @return The balance | |
function balanceOf(address _owner) constant returns (uint256 balance) {} | |
/// @notice send `_value` token to `_to` from `msg.sender` | |
/// @param _to The address of the recipient | |
/// @param _value The amount of token to be transferred | |
/// @return Whether the transfer was successful or not | |
function transfer(address _to, uint256 _value) returns (bool success) {} | |
/// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from` | |
/// @param _from The address of the sender | |
/// @param _to The address of the recipient | |
/// @param _value The amount of token to be transferred | |
/// @return Whether the transfer was successful or not | |
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {} | |
/// @notice `msg.sender` approves `_addr` to spend `_value` tokens | |
/// @param _spender The address of the account able to transfer the tokens | |
/// @param _value The amount of wei to be approved for transfer | |
/// @return Whether the approval was successful or not | |
function approve(address _spender, uint256 _value) returns (bool success) {} | |
/// @param _owner The address of the account owning tokens | |
/// @param _spender The address of the account able to transfer the tokens | |
/// @return Amount of remaining tokens allowed to spent | |
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {} | |
event Transfer(address indexed _from, address indexed _to, uint256 _value); | |
event Approval(address indexed _owner, address indexed _spender, uint256 _value); | |
} | |
contract StandardToken is Token { | |
function transfer(address _to, uint256 _value) returns (bool success) { | |
//if (balances[msg.sender] >= _value && balances[_to] + _value > balances[_to]) { | |
if (balances[msg.sender] >= _value && _value > 0) { | |
balances[msg.sender] -= _value; | |
balances[_to] += _value; | |
Transfer(msg.sender, _to, _value); | |
return true; | |
} else { return false; } | |
} | |
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) { | |
//if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value > balances[_to]) { | |
if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && _value > 0) { | |
balances[_to] += _value; | |
balances[_from] -= _value; | |
allowed[_from][msg.sender] -= _value; | |
Transfer(_from, _to, _value); | |
return true; | |
} else { return false; } | |
} | |
function balanceOf(address _owner) constant returns (uint256 balance) { | |
return balances[_owner]; | |
} | |
function approve(address _spender, uint256 _value) returns (bool success) { | |
allowed[msg.sender][_spender] = _value; | |
Approval(msg.sender, _spender, _value); | |
return true; | |
} | |
function allowance(address _owner, address _spender) constant returns (uint256 remaining) { | |
return allowed[_owner][_spender]; | |
} | |
mapping (address => uint256) balances; | |
mapping (address => mapping (address => uint256)) allowed; | |
uint256 public totalSupply; | |
} | |
contract CMBToken is StandardToken { | |
function () { | |
//if ether is sent to this address, send it back. | |
throw; | |
} | |
string public name = 'CMB Coin'; | |
uint8 public decimals = 0; | |
string public symbol = 'CMB'; | |
string public version = 'H1.0'; | |
function CMBToken() { | |
balances[msg.sender] = 100; | |
totalSupply = 100; | |
name = "CMB Coin"; | |
decimals = 0; | |
symbol = "CMB"; | |
} | |
function approveAndCall(address _spender, uint256 _value, bytes _extraData) returns (bool success) { | |
allowed[msg.sender][_spender] = _value; | |
Approval(msg.sender, _spender, _value); | |
if(!_spender.call(bytes4(bytes32(sha3("receiveApproval(address,uint256,address,bytes)"))), msg.sender, _value, this, _extraData)) { throw; } | |
return true; | |
} | |
} |
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