Low Level Bit Hacks You Absolutely Must Know

You're viewing a comment by Mattho and its responses.

July 01, 2009, 13:53

Another bit-based operation:
Switch values of a and b w/o using additional variable

a^=b;b^=a;a^=b;
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anonym Permalink
April 19, 2011, 12:38

This is undefined behaviour (i.e. implementation dependent) in C/C++ and it doesn't work in Java.

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Partho Permalink
February 25, 2012, 03:48

here you go: a=a^b; b=a^b; a=a^b;

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