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What is the purpose of the << operator?

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What is the purpose of the << operator?

(a) Bitwise AND

(b) Bitwise Right Shift

(c) Bitwise Left Shift

(d) Bitwise OR

I have been asked this question in an online interview.

This intriguing question comes from Operators topic in division Arduino Programming of Arduino

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Correct answer is (c) Bitwise Left Shift

The best I can explain: The << operator takes two numbers as operands. Then it shifts the bits of the first operand by the value present in the second operand from right to left. The second operand however has to be a number less than 32 only. Otherwise the operation will not work.

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