Does address.transfer() method prevents underflow/overflow?

Question

I'm not sure if this is a legit concern but I would still want to know. If anyone can enlighten me. I know that the address.transfer() method is mostly viewed as the safest way to send eth within the contract so this is what I mostly use that is why I want to know if it can prevent an underflow or an overflow even though it is highly unlikely that someone can acquire that much ether [Please refer to the note as well] to cause an overflow.

Note that there is not enough ETH in existence to cause an overflow, the total amount of wei fits well within 256 bits

Answer 1

The address.transfer() method will prevent any unintended underflow from an account. It will cause a revert in these situations, and stop the entire transaction from occurring.

Answer 2

The total ether supply is 102 million and 1 ether equals 10^18 wei. That amounts to about total wei supply 10^26 wei which fits into 87 bits (take the binary logarithm of total wei supply). There shouldn't be any overflow problem with the amount parameter because it is a uint256.