How to raise something to a power using bitwise
My professor said that we should know how to raise some number to some power using bitwise. I've searched the internet and reviewed his powerpoints and I think masking maybe involved but I'm not sure. I'm pretty new to C++ and the jargon is still hard for me to follow sometimes. Could anyone explain how this would be done? Pseudocode would work just fine, I think. It's not for an assignment that I actually have to code. I'm just trying to understand the concepts. Thanks.
Given an integer 0 <= n < m,
1 << n is equal to 2n, where m = sizeof(int) * CHAR_BIT. On most platforms, m = 32 or m = 64.
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