Efficient way to manipulate large powers of two

Posted by bguiz on Stack Overflow See other posts from Stack Overflow or by bguiz
Published on 2010-05-08T02:19:05Z Indexed on 2010/05/08 2:28 UTC
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Filed under:

java

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math

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bit-shift

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largenumber

The most efficient way to code powers of two is by bit shifting of integers.

1 << n gives me 2^(n-1)

However, if I have a number that is larger than the largest value allowed in an int, what can I use to efficiently manipulate powers of 2?

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