{
    "Function": "_find",
    "File": "contracts/RubiconMarket.sol",
    "Parent Contracts": [
        "contracts/RubiconMarket.sol",
        "contracts/RubiconMarket.sol",
        "contracts/RubiconMarket.sol",
        "contracts/RubiconMarket.sol",
        "contracts/RubiconMarket.sol",
        "contracts/RubiconMarket.sol",
        "contracts/RubiconMarket.sol",
        "contracts/RubiconMarket.sol"
    ],
    "High-Level Calls": [],
    "Internal Calls": [
        "_isPricedLtOrEq",
        "require(bool)"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function _find(uint256 id) internal view returns (uint256) {\n        require(id > 0);\n\n        address buy_gem = address(offers[id].buy_gem);\n        address pay_gem = address(offers[id].pay_gem);\n        uint256 top = _best[pay_gem][buy_gem];\n        uint256 old_top = 0;\n\n        // Find the larger-than-id order whose successor is less-than-id.\n        while (top != 0 && _isPricedLtOrEq(id, top)) {\n            old_top = top;\n            top = _rank[top].prev;\n        }\n        return old_top;\n    }"
}