Sorry for jumping in VERY late.
If you have something like
DCL X CHAR (6);
X = DATE;
then you will get strange results, because DATE is not recognized as the
well-known builtin function DATE which returns the
current date. But instead it is a DECIMAL FLOAT(6) variable with an
undefined value (given the "normal" default rules, inherited
from FORTRAN, which defines an undefined variable depending on its first
letter ... and, of course, if you don't have the more
modern compiler options which prevent you from using undefined variables
etc.).
Now, if you want the compiler to use the builtin function DATE instead
of this undefined variable, you have two choices:
- declare DATE as a BUILTIN function
DCL DATE BUILTIN;
X = DATE;
- put parantheses after DATE; that is:
X = DATE ();
this way, DATE is known to be the BUILTIN function "by context".
Both variants will do.
Same goes for all other builtin functions without arguments.
HTH,
kind regards
Bernd
(PL/1 teacher since 1991 - and many other stuff, ASSEMBLER, C, DB2, ...)
Am 15.11.2023 um 18:34 schrieb Binyamin Dissen:
A PL/I source code member has
DCL foobar BUILTIN
and must be compiled with RULES(LAXDCL)
I see no reference to FOOBAR as a function call.
My question is if FOOBAR was invoked, what does the BUILTIN clause do? A
different calling sequence? Looking for an internal label?
--
Binyamin Dissen <[email protected]>
http://www.dissensoftware.com
Director, Dissen Software, Bar & Grill - Israel
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