Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

• library SafeMath
•    - function add(uint a, uint b)
•    - function add(uint a, uint b, string m ...
•    - function sub(uint a, uint b)
•    - function sub(uint a, uint b, string m ...
•    - function mul(uint a, uint b)
•    - function mul(uint a, uint b, string m ...
•    - function div(uint a, uint b)
•    - function div(uint a, uint b, string m ...
•    - function mod(uint a, uint b)
•    - function mod(uint a, uint b, string m ...
• interface IChainLinkFeed
•    - function latestAnswer()
•  contract Keep3rHelper *
•    - function getQuoteLimit(uint gasUsed)

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2020-10-27
*/

// SPDX-License-Identifier: MIT
pragma solidity ^0.6.12;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     * - Addition cannot overflow.
     */
    function add(uint a, uint b) internal pure returns (uint) {
        uint c = a + b;
        require(c >= a, "add: +");

        return c;
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting with custom message on overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     * - Addition cannot overflow.
     */
    function add(uint a, uint b, string memory errorMessage) internal pure returns (uint) {
        uint c = a + b;
        require(c >= a, errorMessage);

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on underflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot underflow.
     */
    function sub(uint a, uint b) internal pure returns (uint) {
        return sub(a, b, "sub: -");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on underflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot underflow.
     */
    function sub(uint a, uint b, string memory errorMessage) internal pure returns (uint) {
        require(b <= a, errorMessage);
        uint c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     * - Multiplication cannot overflow.
     */
    function mul(uint a, uint b) internal pure returns (uint) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint c = a * b;
        require(c / a == b, "mul: *");

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     * - Multiplication cannot overflow.
     */
    function mul(uint a, uint b, string memory errorMessage) internal pure returns (uint) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint c = a * b;
        require(c / a == b, errorMessage);

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers.
     * Reverts on division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function div(uint a, uint b) internal pure returns (uint) {
        return div(a, b, "div: /");
    }

    /**
     * @dev Returns the integer division of two unsigned integers.
     * Reverts with custom message on division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function div(uint a, uint b, string memory errorMessage) internal pure returns (uint) {
        // Solidity only automatically asserts when dividing by 0
        require(b > 0, errorMessage);
        uint c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function mod(uint a, uint b) internal pure returns (uint) {
        return mod(a, b, "mod: %");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function mod(uint a, uint b, string memory errorMessage) internal pure returns (uint) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

interface IChainLinkFeed {
    function latestAnswer() external view returns (int256);
}

contract Keep3rHelper {
    using SafeMath for uint;
    
    IChainLinkFeed public constant FASTGAS = IChainLinkFeed(0x169E633A2D1E6c10dD91238Ba11c4A708dfEF37C);
    
    function getQuoteLimit(uint gasUsed) external view returns (uint) {
        return gasUsed.mul(uint(FASTGAS.latestAnswer()));
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"name":"FASTGAS","outputs":[{"internalType":"contract IChainLinkFeed","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"gasUsed","type":"uint256"}],"name":"getQuoteLimit","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]

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

6374:313:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;6551:133;;;;;;;;;;;;;;;;-1:-1:-1;6551:133:0;;:::i;:::-;;;;;;;;;;;;;;;;6439:99;;;:::i;:::-;;;;-1:-1:-1;;;;;6439:99:0;;;;;;;;;;;;;;6551:133;6611:4;6635:41;6495:42;-1:-1:-1;;;;;6652:20:0;;:22;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;6652:22:0;6635:7;;:11;:41::i;:::-;6628:48;6551:133;-1:-1:-1;;6551:133:0:o;6439:99::-;6495:42;6439:99;:::o;2548:432::-;2600:4;2842:6;2838:47;;-1:-1:-1;2872:1:0;2865:8;;2838:47;2906:5;;;2910:1;2906;:5;:1;2930:5;;;;;:10;2922:29;;;;;-1:-1:-1;;;2922:29:0;;;;;;;;;;;;-1:-1:-1;;;2922:29:0;;;;;;;;;;;;;;;2971:1;2548:432;-1:-1:-1;;;2548:432:0:o

ipfs://bcf5053faa488725a8ada4c0436668825e16d6638f939c9ce4b9f17daefcdc99