Files
openzeppelin-contracts/contracts/token/BurnableToken.sol
2017-09-11 12:11:00 -03:00

26 lines
618 B
Solidity

pragma solidity ^0.4.13;
import './StandardToken.sol';
/**
* @title Burnable Token
* @dev Token that can be irreversibly burned (destroyed).
*/
contract BurnableToken is StandardToken {
event Burn(address indexed burner, uint256 value);
/**
* @dev Burns a specific amount of tokens.
* @param _value The amount of token to be burned.
*/
function burn(uint256 _value) public {
require(_value > 0);
address burner = msg.sender;
balances[burner] = balances[burner].sub(_value);
totalSupply = totalSupply.sub(_value);
Burn(burner, _value);
}
}