Pseudovariables

Pseudovariables represent receiving fields. They cannot be nested. This topic lists the built-in pseudovariables.

For example, the following is invalid:

  unspec(substr(A,1,2)) = '00'B;

A pseudovariable can appear only:

on the left side of an assignment statement
as the target in a DO-specification and then only if it is one of SUBSTR, REAL, IMAG, or UNSPEC
in the data list of a GET statement or in the STRING option of a PUT statement
as the string name in a KEYTO or REPLY option

Table 1. Built-in pseudovariables
Function	Description
ENTRYADDR	Sets an entry variable with the address of the entry to be invoked
IMAG	Assigns the imaginary part of a complex number
ONCHAR	Sets the value of a character that caused a conversion condition
ONGSOURCE	Sets the value of a graphic string that caused a conversion condition
ONSOURCE	Sets the value of a string that caused a conversion condition
REAL	Assigns the real part of a complex number
STRING	Assigns a string that is the concatenation of all the elements of a string aggregate
SUBSTR	Assigns a substring of a string
ONWCHAR	Sets the value of a widechar that caused a conversion condition
ONWSOURCE	Sets the value of a widechar string that caused a conversion condition
TYPE	Assigns a typed structure or union to storage located by a handle
UNSPEC	Assigns a bit string that is the internal representation of a value

Published: 23 December 2018