Overview

Introduces general characteristics of variables and routines in the Callable Library.

The Callable Library supports modern programming practices. It uses no external variables. Indeed, no global nor static variables are used in the library so that the Callable Library is fully re-entrant and thread-safe. The names of all library routines begin with the three-character prefix CPX to prevent namespace conflicts with your own routines or with other libraries. Also to avoid clutter in the namespace, there is a minimal number of routines for setting and querying parameters.