as.info: Prefix Ops

Go forward to Infix Ops
Go backward to Operators
Go up to Integer Exprs
Go to the top op as

Prefix Operator

   `as' has the following "prefix operators".  They each take one
argument, which must be absolute.
`-'
     "Negation".  Two's complement negation.
`~'
     "Complementation".  Bitwise not.