[OCLUG-devel] question about bitwise ~

[James Colannino]

Hey everyone.  I just have a simple question.  I learned that the ~ 
operator inverts all the bits in an operand.  So, for example, say that 
a byte (a character) contains 10000110.  It would become 01111001.  I've 
tried this on characters and integers.  Both work fine.  However, I 
tried this on a float, and I got the following error from the compiler:

error: wrong type argument to bit-complement

Does anyone know why this won't work on a floating point variable?  It 
seems to me that since all data types are constructed of bits, this 
should work, although the book has been very basic so far, and I also 
haven't finished the chapter, so I may be missing something.

James
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