On Wed, 4 Sep 2013 14:58:05 +0200, Vernooij, CP - SPLXM wrote: > >I can check if a text keyword was not filled in in the allocation >request, e.g.: WHEN(&DATACLAS = ''). > But this distingush between an explicitly coded DATACLAS='' and DATACLAS not coded, or likewise fail to distingush? (Or is the former syntactically prohibited?)
>How do I check if a numerical keyword was not in filled e.g. &BLKSIZE? > >WHEN(&BLKSIZE = '') is syntactically incorrect. > >WHEN(&BLKSIZE = 0) not the same as 'not filled'. > Is your intent to allow the programmer to bypass the ACS routine and rely on SDB? (In other languages I pine for Rexx, which has an explicit predicate, SYMBOL() to test for non-definition of a variable, rather than presuming some specific value to indicate non-definition. PL/I? COBOL?) -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
