Let x be an unsigned int on a machine with 4-byte unsigned ints. What effect does
X>>=1;
X<<=1;
Have?

Question

Let x be an unsigned int on a machine with 4-byte unsigned ints. What effect does X>>=1; X<<=1; Have? A) There is no effect. B) The leftmost bit of x is set to 0. C) The rightmost bit of x is set to 0. D) Both b) and c).

Quizplus · Accepted Answer

The operation X>>=1 shifts all bits of x to the right by one position, effectively dividing x by 2 and setting the leftmost bit to 0. Then, X<<=1 shifts all bits of x to the left by one position, effectively multiplying x by 2. This process sets the rightmost bit to 0, as the original least significant bit is lost in the right shift.

Let X Be an Unsigned Int on a Machine with 4-Byte