OK, Steve, here's the previous post...thanks again! From: Phil Smith Sent: Tuesday, April 10, 2012 9:00 AM To: [email protected] Subject: RE: Re: LE C calling HLASM
Steve Comstock wrote: >Ah, so that's what you want it for. But if the output buffer >length is zero, doesn't that tell you to use the input buffer? >And if an argument is omitted, it will appear as zero, right? >I mean, why else would you pass a buffer length of zero? Because users make mistakes? I mean, we could do that, but it doesn't really solve the problem. We don't want to force them to type OMITTED - at that point they might as well code: rc = THEFUNCTION(inbuffer, inlength, inbuffer, inlength); What we want is to allow both: rc = THEFUNCTION(inbuffer, inlength, outbuffer, outlength); and rc = THEFUNCTION(inbuffer, inlength); /* Works same as if inbuffer/inlength specified again as 3rd & 4th parameters */ as we can in COBOL. Or even in C, for that matter. I still find it hard to believe that PL/I can't do this! Remember that LIST seemed like the answer, except that the high bit never got set on the last parameter. And then LINKAGE(SYSTEM) seemed like the answer, except that you can't specify that on a function call. ...phsiii (will it go 'round in circles...?) ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
