Fixed-Fee-CDP Market sample code

gistfile1.txt

    struct Offer {
        // sorting information
        uint next;  // points to id of next higher offer
        uint previous;  // points to id of previous lower offer
        // economic information
        uint rate; // (minimum) fixed rate for which this offer is valid
        uint amount; // amount of ether associated with this offer
        address owner;
    }

    mapping(uint => Offer) public offers; // doubly linked list of sorted offer ids
    uint public best; // head of offers
    uint public worst; // tail of offers
    uint nextId = 1;