[Bug cobol/126821] [cobol] DISPLAY of a P-scaled item renders the scaling positions as digits

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126821

--- Comment #4 from Simon Sobisch <simonsobisch at gnu dot org> ---
Just throwing in the compiler/dialect view: different implementations do this
differently - which is expected when the standard says that's implementor
defined (most likely: there was already a difference when the standard wrote
that rule).

While this does not give the complete picture the "global" difference is
"DISPLAY as stored" or "DISPLAY as human-readable". IBM and most mainframes do
the first, many PC environments at least default to human-readable.

GnuCOBOL added a dialect option "pretty-display" for this, which is set
depending on the used std (which is different from gcobol's -dialect, which
takes multiple values - I'd expect "whatever dialect came last" to set the
DISPLAY style).

Side note: IBM provides access to Enterprise COBOL via the Open Mainframe
courses.