Calling the burn function

Question

I am using the openzeppelin library and importing the StandardBurnableToken.sol logic into MyContract.sol

here is a code

pragma solidity ^0.4.17;

import "/openzeppelin-solidity/contracts/token/ERC20/StandardToken.sol";
import "/openzeppelin-solidity/contracts/token/ERC20/StandardBurnableToken.sol";

 contract MyToken is StandardToken {
  string public name = 'Membership Token';
  string public symbol = 'MTKO';
  uint8 public decimal = 18;
  uint public INITIAL_SUPPLY = 1000000;

 constructor() public {
  totalSupply_ = INITIAL_SUPPLY;
  balances[msg.sender] = INITIAL_SUPPLY;
 }
}

Do I need to add another function in MyToken.sol to be able to call the burnFrom() function? or is that once the logic is in the ABI it can send tokens to 0x0 addresses?

Answer 1

StandardBurnableToken.sol already contains references to StandardToken.sol and BurnableToken.sol, so all you need to do is:

pragma solidity ^0.4.17;

import "/openzeppelin-solidity/contracts/token/ERC20/StandardBurnableToken.sol";

contract MyToken is StandardBurnableToken {
     ...
}

By doing this, your contract will automatically obtain the burnFrom() function, as well as anything from StandardToken. You will not need to write any code for this, as it is already included.