Checking whether a number is positive or negative using bitwise operators

Question

I can check whether a number is odd/even using bitwise operators. Can I check whether a number is positive/zero/negative without using any conditional statements/operators l

Answer 1

It is quite simple

It can be easily done by

return ((!!x) | (x >> 31));

it returns

• 1 for a positive number,
• -1 for a negative, and
• 0 for zero