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 --                  Decrement operator (postfix) (unary)
------------------------------------------------------------------------------
 Syntax
   nVar--

 Arguments
   nVar is a numeric variable.

 Description
   The -- operator decrements the value of nVar by one. The operation
   is postfix, that is the decrementation precedes the assignment. The
   decrement operator may not be used within expressions.

 Example
   #define EXAMPLE_OPERATOR
   #include example.hdr

   proc Test_936
   vardef
      uint nCounter
   enddef
   nCounter := 25
   do while nCounter > 20
      ? nCounter
      nCounter--
   enddo
   endproc

   proc main
   Test_936()
   endproc