Toggle bits in a variable

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How can we just toggle all the bits in a variable using the shortest code?

Posted 15-Jun-10 21:24pm

Updated 15-Jun-10 21:26pm

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rupeshkp728 16-Jun-10 3:30am

I guess I asked the question at a wrong place here.
So I have asked the same again at the C message board in codeproject.

OriginalGriff 16-Jun-10 3:41am

Don't post the same question in multiple places, just because it's been 6 minutes and you haven't got an answer. Most of Europe isn't at work yet!

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OriginalGriff · Answer 1 · 2010-06-15T21:38:00

Use "~" - bitwise not. See
here.[^]

int newInvertedVariable = ~oldVariable;

Posted 15-Jun-10 21:38pm

Sandeep Mewara · Answer 2 · 2010-06-15T22:01:00

XOR operator(^) can be used to toggle a bit.

C

number ^= 1 << x;

Look here for more: Toggling a bit[^]

Posted 15-Jun-10 22:01pm

Richard MacCutchan · Answer 3 · 2010-06-15T22:26:00

You should review the information presented here[^].

Posted 15-Jun-10 22:26pm