2.2.5.1 Introduction

In a Scheme system that has a module or package system, these procedures should be contained in a module named list-lib. The templates given below obey the following conventions for procedure formals:

list

a proper (finite, nil–terminated) list;

clist

a proper or circular list;

flist

a finite (proper or dotted) list;

pair

a pair;

x, y, d, a

any value;

object, value

any value;

n, i

a natural number (an integer >= 0);

proc

a procedure;

pred

a procedure whose return value is treated as a boolean;

=

a boolean procedure taking two arguments.

It is an error to pass a circular or dotted list to a procedure not defined to accept such an argument.