library Decimal {
    using SafeMath for uint256;

    // ============ Constants ============

    uint256 constant BASE_POW = 18;
    uint256 constant BASE = 10**BASE_POW;

    // ============ Structs ============

    struct D256 {
        uint256 value;
    }

    // ============ Functions ============

    function one() internal pure returns (D256 memory) {
        return D256({value: BASE});
    }

    function onePlus(D256 memory d) internal pure returns (D256 memory) {
        return D256({value: d.value.add(BASE)});
    }

    function mul(uint256 target, D256 memory d)
        internal
        pure
        returns (uint256)
    {
        return Math.getPartial(target, d.value, BASE);
    }

    function div(uint256 target, D256 memory d)
        internal
        pure
        returns (uint256)
    {
        return Math.getPartial(target, BASE, d.value);
    }
}
/**
 * @title Decimal
 *
 * Library that defines a fixed-point number with 18 decimal places.
 */
function one() internal pure returns (D256 memory) {
        return D256({value: BASE});
    }
// ============ Functions ============