// SPDX-License-Identifier: MIT pragma solidity ^0.6.0; import "../math/SignedSafeMath.sol"; contract SignedSafeMathMock { function mul(int256 a, int256 b) public pure returns (int256) { return SignedSafeMath.mul(a, b); } function div(int256 a, int256 b) public pure returns (int256) { return SignedSafeMath.div(a, b); } function sub(int256 a, int256 b) public pure returns (int256) { return SignedSafeMath.sub(a, b); } function add(int256 a, int256 b) public pure returns (int256) { return SignedSafeMath.add(a, b); } }