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openzeppelin-contracts/contracts/token/ERC827/ERC827.sol

27 lines
632 B

pragma solidity ^0.4.21;
import "../ERC20/ERC20.sol";
/**
@title ERC827 interface, an extension of ERC20 token standard
Interface of a ERC827 token, following the ERC20 standard with extra
methods to transfer value and data and execute calls in transfers and
approvals.
*/
contract ERC827 is ERC20 {
function approve( address _spender, uint256 _value, bytes _data ) public returns (bool);
function transfer( address _to, uint256 _value, bytes _data ) public returns (bool);
function transferFrom(
address _from,
address _to,
uint256 _value,
bytes _data
)
public
returns (bool);
}