What is the value of ~0 in C?

Question

I want to get the values of INT_MIN and INT_MAX. I\'ve tried ~0 and ~0 >> 1 since the leftmost bit is a sign bit bu

Answer 1

~0 is -1. Every C implementation that you're likely to run into uses two's complement for signed integers, so 0xffffffff is -1 (assuming 32-bit integers). ~0 >> 1 is the equivalent of dividing -1 by 2; since we're doing integer arithmetic, the result is -1.