Whale Token - audit

The **require** can be used to check for conditions and throw an exception if the condition is not met. It is better to provide a string message containing details about the error that will be passed back to the caller.

The contract inherits from the `Ownable` contract, a standard module that provides basic access control. However, despite this inheritance, the contract does not seem to utilize any of the owner-exclusive functions. This lack of owner-specific functionality raises the possibility that the contract might not actually need the ownership mechanism offered by the `Ownable` module. It is noted that the ownership has been renounced in the transaction [0xfd6c3ff3ad9e0d5eca118215872aed994a4a562c49fea08805b9c297119ee472](https://bscscan.com/tx/0xfd6c3ff3ad9e0d5eca118215872aed994a4a562c49fea08805b9c297119ee472).

The linked variables assigned in the constructor can be declared as `immutable`. Immutable state variables can be assigned during contract creation but will remain constant throughout the lifetime of a deployed contract. A big advantage of immutable variables is that reading them is significantly cheaper than reading from regular state variables since they will not be stored in storage.