HP 3000 Manuals

Introduction to MPE XL for MPE V Programmers Migration Guide

HPCIDELETEVAR (NM) 
(new) 

You use the HPCIDELETEVAR intrinsic to remove an entry from the
session-level variable table.  One parameter is required:  a character
string with the name of the variable you want deleted.  You should use
the optional error parameter, as no condition codes are returned.

MPE/iX 5.0 Documentation