Confused? Difficult to say--the brash nature of this debate is clouding things.
There is an example above which uses something like ''00000001'B to initialise a variable. In Rexx, that is not a boolean value. Depending on which interpreter you use, it is either a byte with contents x'01', which might be printable in some character sets, or it's a string of seven characters '0', a character '1' and a character 'B'. The only numbers I've found thay work in boolean expressions are 1 and 0. There were always going to be compromises building an interpreted language to follow on from the EXEC interpreter on VM/SP. Rupert On Thu., Sep. 10, 2020, 03:06 CM Poncelet, <ponce...@bcs.org.uk> wrote: > Yes. My post-grad thesis was on PL/I - and on its being originally > called Fortran VI in 1962, then NPL in '64, then distributed as PL/I in > '66 together with OS/360. > > I wrote PL/I before Clist/CLIST and long before REXX. > > Confused am I? > > > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
