PUSH stacks the string resulting from the evaluation of
expression LIFO (Last In, First Out)
into the external data queue. (See
Chapter 14, Input and Output Streams for
a discussion of Rexx input and output.)
If you do not specify expression,
a null string is stacked.
Example 2.29. Instructions — PUSH
a="Fred"push/* Puts a null line onto the queue */pusha2/* Puts "Fred 2" onto the queue */
The
QUEUED built-in function
returns the number of lines currently in the external data queue.
