When using bit masks, how do you do "not bitmask", not sure how to explain it so:
How could you do this in bitmasks: if(!something)
5  3107  Banfa 9,065
Expert Mod 8TB
When testing if a bit (or a set of bits) is or isn't set you use the AND bitwise operator.
Yes, but how would I check is it's NOT something.
I know that the logical not is !, is this also the bitwise not?
or do I have to do (bitmask & bitmask2) ? false : true;
Banfa 9,065
Expert Mod 8TB
No bitwise NOT is ~ it is also called bitwise 1's complement.
However logical NOT might suit your purpose better or even testing against a specific value, do you understand fully the output of logical NOT given its possible range of input values?
I suggest you work through a simple example on paper.
I know that !true isn't the same as false (I think), but that's it.
Mask off the unwanted bits, then compare what's left against zero -- either equal to zero or not equal to zero, depending on what sense the test should have.
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