how can you check an individual binary digit in c++

2018-06-09 14:50:09

This question already has an answer here:

How do you set, clear, and toggle a single bit? 26 answers

To get bit n state (returns bit n as 0 or 1):

(value>>n) & 1

To set bit n state (flag is 0 or 1):

value = (value & ~(1 << n)) | (flag << n)

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