777060e0   
   From: smoore@exis.net   
      
   SG wrote:   
   > On Feb 12, 12:20 am, Seungbeom Kim wrote:   
   >> On 2012-02-10 14:14, Francis Glassborow wrote:   
   >>   
   >> > How an actual system represents values is irrelevant, the C++ Standard   
   >> > requires that an implementation conforms to the abstract machine. In   
   C++   
   >> > this abstract machine is required to represent integer types in a pure   
   >> > binary form (there are three options, two's complement (most common)   
   >> > ones complement (I think this is very rare these days), sign and   
   >> > magnitude (again rare). There are no other options. The bitwise   
   >> > operators will operate on the 'bits' even if the underlying system uses   
   >> > some other representation.   
      
   Basically bit operators don't operate on numbers, the operands are   
   bits. If you need to operate on numbers stick to numerical   
   operators. If you want to mix the two the burden is on the perpetrator   
   and the result is not portable.   
      
      
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