File: contracts/RubiconMarket.sol

400:          require(pay_amt > 0);

402:          require(buy_amt > 0);

985:          require(id > 0);

1002:         require(id > 0);
File: contracts/rubiconPools/BathHouse.sol

111:          require(_reserveRatio > 0);

281:          require(rr > 0);
