libs/contracts/lib/forge-std/src/StdConstants.sol

// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity >=0.8.13 <0.9.0;

import {IMulticall3} from "./interfaces/IMulticall3.sol";
import {Vm} from "./Vm.sol";

library StdConstants {
    /// @dev Cheat code address.
    /// Calculated as `address(uint160(uint256(keccak256("hevm cheat code"))))`.
    Vm internal constant VM = Vm(0x7109709ECfa91a80626fF3989D68f67F5b1DD12D);
    /// @dev console.sol and console2.sol work by executing a staticcall to this address.
    /// Calculated as `address(uint160(uint88(bytes11("console.log"))))`.
    address internal constant CONSOLE = 0x000000000000000000636F6e736F6c652e6c6f67;
    /// @dev Used when deploying with create2.
    /// Taken from https://github.com/Arachnid/deterministic-deployment-proxy.
    address internal constant CREATE2_FACTORY = 0x4e59b44847b379578588920cA78FbF26c0B4956C;
    /// @dev The default address for tx.origin and msg.sender.
    /// Calculated as `address(uint160(uint256(keccak256("foundry default caller"))))`.
    address internal constant DEFAULT_SENDER = 0x1804c8AB1F12E6bbf3894d4083f33e07309d1f38;
    /// @dev The address of the first contract `CREATE`d by a running test contract.
    /// When running tests, each test contract is `CREATE`d by `DEFAULT_SENDER` with nonce 1.
    /// Calculated as `VM.computeCreateAddress(VM.computeCreateAddress(DEFAULT_SENDER, 1), 1)`.
    address internal constant DEFAULT_TEST_CONTRACT = 0x5615dEB798BB3E4dFa0139dFa1b3D433Cc23b72f;
    /// @dev Deterministic deployment address of the Multicall3 contract.
    /// Taken from https://www.multicall3.com.
    IMulticall3 internal constant MULTICALL3_ADDRESS = IMulticall3(0xcA11bde05977b3631167028862bE2a173976CA11);
    /// @dev The order of the secp256k1 curve.
    uint256 internal constant SECP256K1_ORDER =
        115792089237316195423570985008687907852837564279074904382605163141518161494337;
}