pragma solidity ^0.4.11; import './ERC20Basic.sol'; /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ contract ERC20 is ERC20Basic { function allowance(address owner, address spender) constant returns (uint256); function transferFrom(address from, address to, uint256 value); function approve(address spender, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); }