// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.23;
interface IBasicContractTest {
function adder(
uint _a,
uint _b
) external returns (uint result, bool success);
function subtractor(
uint _a,
uint _b
) external returns (uint result, bool success);
}
contract SafeMathContract is IBasicContractTest {
function adder(
uint _a,
uint _b
) external pure override returns (uint result, bool success) {
if (type(uint).max - _a < _b) {
return (0, true);
} else {
result = _a + _b;
return (result, false);
}
}
function subtractor(
uint _a,
uint _b
) external pure override returns (uint result, bool success) {
if (_b > _a) {
return (0, true);
} else {
result = _a - _b;
return (result, false);
}
}
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