On Tue, 31 Dec 2024 12:10:36 -0600, Paul Gilmartin <paulgboul...@aol.com> wrote:
>>- Does C do mainframe record I/O? C doesn't do any I/O at all, but the >>IBM-supplied C library has excellent support for records, VSAM, pipes, etc., >>etc. You can read all about it in the Programming Guide. >> >Can files of those formats be allocated to DDNAMEs and processed >by traditional access methods such as QSAM, like FILEDATA=RECORD? The Programming Guide is the authoritative source of information. I am not a pipes expert but does DD allocation of pipes even make sense? For VSAM. BPAM and QSAM, yes, the C I/O model supports access by DS name or by DD name. You can read all about it in the P/G. I don't understand the QSAM question. Does the C library use QSAM under the hood? Or some sort of roll-your-own with BSAM or EXCP? No idea. Or do you mean "if you write a file with the C library, can you read it with assembler QSAM?" Yes, absolutely. CM ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
