Which of these expressions will return true if the input integer v is a power of two?
A. (v | (v + 1)) == 0;
B. (~v & (v – 1)) == 0;
C. (v | (v – 1)) == 0;
D. (v & (v – 1)) == 0;
Answer: Option D
Related Questions on Variables and Data Types in C plus plus
Which of the following is a valid variable name in C++?
A. myVariable
B. 123variable
C. variable&
D. float
What is the data type of the variable 'x' in the following declaration: double x = 3.14;?
A. int
B. double
C. float
D. char

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