ERC20.sol 505 B

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  1. pragma solidity ^0.4.18;
  2. import './ERC20Basic.sol';
  3. /**
  4. * @title ERC20 interface
  5. * @dev see https://github.com/ethereum/EIPs/issues/20
  6. */
  7. contract ERC20 is ERC20Basic {
  8. function allowance(address owner, address spender) public view returns (uint256);
  9. function transferFrom(address from, address to, uint256 value) public returns (bool);
  10. function approve(address spender, uint256 value) public returns (bool);
  11. event Approval(address indexed owner, address indexed spender, uint256 value);
  12. }