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@ -7,48 +7,50 @@ import './ERC20.sol'; |
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* ERC 20 token |
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* |
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* https://github.com/ethereum/EIPs/issues/20 |
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* Based on original code by FirstBlood: |
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* Based on code by FirstBlood: |
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* https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol |
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*/ |
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contract BaseToken is ERC20 { |
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function transfer(address _to, uint256 _value) returns (bool success) { |
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if (balances[msg.sender] >= _value && balances[_to] + _value > balances[_to]) { |
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balances[msg.sender] -= _value; |
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balances[_to] += _value; |
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Transfer(msg.sender, _to, _value); |
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return true; |
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} else { return false; } |
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} |
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function transferFrom(address _from, address _to, uint256 _value) returns (bool success) { |
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if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value > balances[_to]) { |
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balances[_to] += _value; |
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balances[_from] -= _value; |
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allowed[_from][msg.sender] -= _value; |
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Transfer(_from, _to, _value); |
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return true; |
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} else { return false; } |
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} |
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function balanceOf(address _owner) constant returns (uint256 balance) { |
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return balances[_owner]; |
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} |
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function approve(address _spender, uint256 _value) returns (bool success) { |
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allowed[msg.sender][_spender] = _value; |
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Approval(msg.sender, _spender, _value); |
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return true; |
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} |
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function allowance(address _owner, address _spender) constant returns (uint256 remaining) { |
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return allowed[_owner][_spender]; |
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} |
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mapping(address => uint256) balances; |
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mapping (address => mapping (address => uint256)) allowed; |
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uint256 public totalSupply; |
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mapping(address => uint256) balances; |
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mapping (address => mapping (address => uint256)) allowed; |
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uint256 public totalSupply; |
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function transfer(address _to, uint256 _value) returns (bool success) { |
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if (balances[msg.sender] >= _value && |
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balances[_to] + _value > balances[_to]) { |
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balances[msg.sender] -= _value; |
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balances[_to] += _value; |
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Transfer(msg.sender, _to, _value); |
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return true; |
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} else { return false; } |
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} |
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function transferFrom(address _from, address _to, uint256 _value) returns (bool success) { |
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if (balances[_from] >= _value && |
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allowed[_from][msg.sender] >= _value && |
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balances[_to] + _value > balances[_to]) { |
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balances[_to] += _value; |
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balances[_from] -= _value; |
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allowed[_from][msg.sender] -= _value; |
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Transfer(_from, _to, _value); |
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return true; |
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} else { return false; } |
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} |
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function balanceOf(address _owner) constant returns (uint256 balance) { |
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return balances[_owner]; |
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} |
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function approve(address _spender, uint256 _value) returns (bool success) { |
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allowed[msg.sender][_spender] = _value; |
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Approval(msg.sender, _spender, _value); |
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return true; |
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} |
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function allowance(address _owner, address _spender) constant returns (uint256 remaining) { |
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return allowed[_owner][_spender]; |
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} |
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} |
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