Not sure what you're running but on Universe you could use VLIST or do
MAKE.MAP.FILE and then look at field 12 of MAP for your catalogued
subroutine.
Don't know of a way to do it real-time as such. Presumably you want to
stop program A failing when calling program B with incorrect argument?
From: Adrian Matthews
Don't know of a way to do it real-time as such.
IBM provides the EXIST subroutine in the APP.PROGS directory for such.
Best regards,
Gyle
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