{
    "Function": "getPriorRewardPerToken",
    "File": "contracts/contracts/Gauge.sol",
    "Parent Contracts": [],
    "High-Level Calls": [],
    "Internal Calls": [],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function getPriorRewardPerToken(address token, uint timestamp) public view returns (uint, uint) {\n        uint nCheckpoints = rewardPerTokenNumCheckpoints[token];\n        if (nCheckpoints == 0) {\n            return (0,0);\n        }\n\n        // First check most recent balance\n        if (rewardPerTokenCheckpoints[token][nCheckpoints - 1].timestamp <= timestamp) {\n            return (rewardPerTokenCheckpoints[token][nCheckpoints - 1].rewardPerToken, rewardPerTokenCheckpoints[token][nCheckpoints - 1].timestamp);\n        }\n\n        // Next check implicit zero balance\n        if (rewardPerTokenCheckpoints[token][0].timestamp > timestamp) {\n            return (0,0);\n        }\n\n        uint lower = 0;\n        uint upper = nCheckpoints - 1;\n        while (upper > lower) {\n            uint center = upper - (upper - lower) / 2; // ceil, avoiding overflow\n            RewardPerTokenCheckpoint memory cp = rewardPerTokenCheckpoints[token][center];\n            if (cp.timestamp == timestamp) {\n                return (cp.rewardPerToken, cp.timestamp);\n            } else if (cp.timestamp < timestamp) {\n                lower = center;\n            } else {\n                upper = center - 1;\n            }\n        }\n        return (rewardPerTokenCheckpoints[token][lower].rewardPerToken, rewardPerTokenCheckpoints[token][lower].timestamp);\n    }"
}