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-rw-r--r--test/compilationTests/zeppelin/token/StandardToken.sol65
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diff --git a/test/compilationTests/zeppelin/token/StandardToken.sol b/test/compilationTests/zeppelin/token/StandardToken.sol
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+pragma solidity ^0.4.11;
+
+
+import './BasicToken.sol';
+import './ERC20.sol';
+
+
+/**
+ * @title Standard ERC20 token
+ *
+ * @dev Implementation of the basic standard token.
+ * @dev https://github.com/ethereum/EIPs/issues/20
+ * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
+ */
+contract StandardToken is ERC20, BasicToken {
+
+ mapping (address => mapping (address => uint256)) allowed;
+
+
+ /**
+ * @dev Transfer tokens from one address to another
+ * @param _from address The address which you want to send tokens from
+ * @param _to address The address which you want to transfer to
+ * @param _value uint256 the amout of tokens to be transfered
+ */
+ function transferFrom(address _from, address _to, uint256 _value) {
+ var _allowance = allowed[_from][msg.sender];
+
+ // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
+ // if (_value > _allowance) throw;
+
+ balances[_to] = balances[_to].add(_value);
+ balances[_from] = balances[_from].sub(_value);
+ allowed[_from][msg.sender] = _allowance.sub(_value);
+ Transfer(_from, _to, _value);
+ }
+
+ /**
+ * @dev Aprove the passed address to spend the specified amount of tokens on behalf of msg.sender.
+ * @param _spender The address which will spend the funds.
+ * @param _value The amount of tokens to be spent.
+ */
+ function approve(address _spender, uint256 _value) {
+
+ // To change the approve amount you first have to reduce the addresses`
+ // allowance to zero by calling `approve(_spender, 0)` if it is not
+ // already 0 to mitigate the race condition described here:
+ // https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
+ if ((_value != 0) && (allowed[msg.sender][_spender] != 0)) throw;
+
+ allowed[msg.sender][_spender] = _value;
+ Approval(msg.sender, _spender, _value);
+ }
+
+ /**
+ * @dev Function to check the amount of tokens that an owner allowed to a spender.
+ * @param _owner address The address which owns the funds.
+ * @param _spender address The address which will spend the funds.
+ * @return A uint256 specifing the amount of tokens still avaible for the spender.
+ */
+ function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
+ return allowed[_owner][_spender];
+ }
+
+}