Level set: I know what I am doing in Rexx. I am real familiar with and have written function packages already.
I want to write a function that will be callable both from Rexx and from C++. (This may be my first adventure with Metal C, but that's a different topic.) The C++ part is easy; let's talk about the linkage from Rexx. I know I can call from Rexx using "standard" MVS linkage using ADDRESS LINKMVS or LINKPGM. (We just went over the differences here; let's not digress into that!) But if I am RTFM correctly, LINKMVS/PGM requires a separate load module or alias (or IDENTIFY and I don't think I want to go there for this). For the sake of neater packaging I would like to linkedit the callable function into an existing "function package." Relying on separate load modules or PDS aliases complicates life in other ways. I don't *think* I can make a standard MVS linkage function part of a Rexx function package, is that right? LINKMVS/PGM and Rexx functions live in different worlds, right? LINKMVS/PGM always searches for MVS entry points, and only Rexx functions use function packages, is that right? If I want to do this then instead of using LINKMVS/PGM I will have to write a "Rexx linkage" Rexx function that provides a glue layer between Rexx and the standard MVS linkage function? Or does anyone know something I am missing? Thanks! Charles ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
