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  1.  
  2. 24. Bit Operators
  3.  
  4.             C has several operators for logical bit-operations. For example,
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  6.             x = x & 0177;
  7.  
  8. forms the bit-wise AND of x and 0177, effectively retaining only the last seven bits of x. Other operators are
  9.  
  10.             |          inclusive OR
  11.             ^          (circumflex) exclusive OR
  12.             ~       (tilde) 1‚Äôs complement
  13.             !       logical NOT
  14.             <<      left shift (as in x<<2)
  15.             >>      right shift (arithmetic on PDP-11; logical on H6070, IBM360)
  16.