@@ -1,61 +1,61 @@ -\section{Symbolic Mode} - -\begin{Operator}{EQ} -\begin{Syntax} -\meta{expression} \name{eq} \meta{expression} -\end{Syntax} - -\name{eq} is an infix binary comparison operator that returns {\em true\/} -if the first expression points to the same object as the second. Users -should be completely familiar with the concept of Lisp pointers and their -comparison before using this operator. - -\begin{Comments} -\name{eq} is {\em not\/} -a reliable comparison between numeric arguments. -\end{Comments} - -\end{Operator} - -\begin{Switch}{FASTFOR} -The switch \name{fastfor} causes \nameref{for} loops to use so-called -``inum'' arithmetic in which simple arithmetic operations, such as -updating operations on the looping variable, are replaced by machine -operations. - -\begin{Comments} -This switch should be used with care. Only code that is compiled should -utilize its effect, since some of the operations used are not supported -in interpreted mode. It is also the user's responsibility to ensure that -the arithmetic operations are within the appropriate range, since no -overflow is checked. -\end{Comments} - -\end{Switch} - - -\begin{Operator}{MEMQ} - -\begin{Syntax} -\meta{expression} \name{memq} \meta{list} -\end{Syntax} - -\name{member} is an infix binary comparison operator that evaluates to -{\em true\/} if \meta{expression} is a \nameref{eq} to any member of -\meta{list}. - -\begin{Examples} -if 'a memq {'a,'b} then 1 else 0; & 1 \\ -if '(a) memq {'(a),'(b)} then 1 else 0; & 0 -\end{Examples} - -\begin{Comments} -Since \name{eq} is not a reliable comparison between numeric arguments, -one can't be sure that 1 for example is \name{memq} the list -\name{\{1,2\}}. -\end{Comments} - - -\end{Operator} - - +\section{Symbolic Mode} + +\begin{Operator}{EQ} +\begin{Syntax} +\meta{expression} \name{eq} \meta{expression} +\end{Syntax} + +\name{eq} is an infix binary comparison operator that returns {\em true\/} +if the first expression points to the same object as the second. Users +should be completely familiar with the concept of Lisp pointers and their +comparison before using this operator. + +\begin{Comments} +\name{eq} is {\em not\/} +a reliable comparison between numeric arguments. +\end{Comments} + +\end{Operator} + +\begin{Switch}{FASTFOR} +The switch \name{fastfor} causes \nameref{for} loops to use so-called +``inum'' arithmetic in which simple arithmetic operations, such as +updating operations on the looping variable, are replaced by machine +operations. + +\begin{Comments} +This switch should be used with care. Only code that is compiled should +utilize its effect, since some of the operations used are not supported +in interpreted mode. It is also the user's responsibility to ensure that +the arithmetic operations are within the appropriate range, since no +overflow is checked. +\end{Comments} + +\end{Switch} + + +\begin{Operator}{MEMQ} + +\begin{Syntax} +\meta{expression} \name{memq} \meta{list} +\end{Syntax} + +\name{member} is an infix binary comparison operator that evaluates to +{\em true\/} if \meta{expression} is a \nameref{eq} to any member of +\meta{list}. + +\begin{Examples} +if 'a memq {'a,'b} then 1 else 0; & 1 \\ +if '(a) memq {'(a),'(b)} then 1 else 0; & 0 +\end{Examples} + +\begin{Comments} +Since \name{eq} is not a reliable comparison between numeric arguments, +one can't be sure that 1 for example is \name{memq} the list +\name{\{1,2\}}. +\end{Comments} + + +\end{Operator} + +