[Larceny-users] ERR5RS Default Record Printer

[Ray Racine]

I may have missed this in the new doc/scheme-punks wiki, but can one set
a default printer for an ERR5RS record?

Is (record-updater (record-type-descriptor thread-rtd) 'printer) ...)
valid ERR5RS or shall it be considered as a Larceny and therefore
non-portable extension?

Thanks,

Ray