Two's complement is a clever way of storing integers so that common math problems are very simple to implement. To understand, you have to think of the numbers in binary. It basically says, 1  for zero, use all 0's. 2  for positive integers, start counting up, with a maximum of 2 (number of bits - 1) -1.or example: 100101 itâs 1âs complement is 011010 and 2âs complement is 011010+1 = 011011 (By adding one with 1's complement) For more information this article explain it graphically.
If your cat is throwing up white foam and making noticeable hacking sounds, then it could be a precursor to actually producing the mass of hair -- the hairball. If the mass forms a plug, it may strain liquid out that appears as foam. Other common indications of hairballs are constipation and reduced appetite.
The cat will also make different noises, as if he is chocking, in attempt to eliminate the hairballs. If your cat vomits clear liquid without eliminating a hairball soon after that, you should visit the vet and determine the reason your cat vomits clear liquid. Thyroid Problems This can cause the cat to vomit clear liquid. Hyperthyroidism, which is a condition caused by the excess secretion of the thyroid hormone is a disease that is difficult to detect. However, the cat may also present other symptoms such as oily skin, greasy hair, and acne in the facial area or excessive salivation.