5.  Conventions  

      In the following sections, the names of procedure arguments can dictate that the arguments are of specific types. If an argument name is also the name of a Scheme data type, the argument must be an object of that type. For example, a procedure with an argument named string must be invoked with a string. File descriptor arguments (named fdescr, or fdescr1, fdescr2, etc.) and arguments named length are always non-negative integers; filename arguments (filename) are strings or symbols; and arguments with the suffix ``?'' are booleans.

Markup created by unroff 1.0,    September 24, 1996,    net@informatik.uni-bremen.de