What are bitwise shift operations in programming?
Bitwise shift operations are used to shift the bits of a binary number left or right, effectively multiplying or dividing by powers of two.
Can you explain the difference between left shift and right shift?
Sure! A left shift (<<) moves bits to the left, filling with zeros, which multiplies the number by 2 for each shift. A right shift (>>) moves bits to the right, which divides the number by 2 for each shift.
What happens to the sign bit in a right shift operation?
In a right shift, if it's an arithmetic shift, the sign bit is preserved (for negative numbers). In a logical shift, zeros are filled in from the left.
Can you give me an example of a left shift operation?
Certainly! If you left shift the binary number 0001 (which is 1 in decimal) by 2 positions, it becomes 0100 (which is 4 in decimal).
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