IBM SC34-5764-01 - Manual (Page 53)

When you run this program, it produces:
12 *-* IF (a > z) | (c < 2 * d)
>V> "1"
>V> "2"
>O> "0"
>V> "3"
>L> "2"
>V> "4"
>O> "8"
>O> "1"
>O> "1"
*-* THEN
13 *-* SAY 'At least one expression was true.'
>L> "At least one expression was true."
At least one expression was true.
/****************************** REXX ********************************/
/* This program uses the TRACE instruction to show how the language */
/* processor evaluates an expression, operation by operation.
*/
/********************************************************************/
a = 1
z = 2
c = 3
d = 4
TRACE I
IF (a > z) | (c < 2 * d) THEN
SAY 'At least one expression was true.'
ELSE
SAY 'Neither expression was true.'
Figure 16. Possible Solution
Using Variables and Expressions
Chapter 3. Using Variables and Expressions 31