But if it quacks like a hippopotamus than it is not a duck. FIXED BIN(fo0,0) and FIXED DEC(foo,0) do not quack like an integer.
Would you call 3.0E0 an integer? -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Robin Vowels <robi...@dodo.com.au> Sent: Monday, September 7, 2020 1:41 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: PL/I declarations (was: Constant Identifiers) On 2020-09-07 15:15, Seymour J Metz wrote: > No, FIXED BIN(15,0) is not an integer, and the precision rules can be > very annoying to those with a Fortran mindset. If it looks like a duck and quacks like a duck, it probably is a duck. An integer is a whole number. FIXED BINARY (15) and FIXED BINARY(15,0) are both attributes describing a whole number, that is, an integer. > ________________________________________ > From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on > behalf of Joe Monk <joemon...@gmail.com> > Sent: Sunday, September 6, 2020 7:35 PM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: Constant Identifiers > > "PL/I doesn't have integers." > > Sorry Shmuel, youre incorrect. > > FIXED BINARY (15,0) is a 2 byte integer and FIXED BINARY (31,0) is a 4 > byte > integer. > > "The ratiio 4/3 is FIXED BIN," > > No, its FIXED DECIMAL (1,0)... > > Joe > > On Sun, Sep 6, 2020 at 2:33 PM Seymour J Metz <sme...@gmu.edu> wrote: > >> PL/I doesn't have integers. The ratiio 4/3 is FIXED BIN, with some >> number >> of bits after the binary point. >> >> >> -- >> Shmuel (Seymour J.) Metz >> http://mason.gmu.edu/~smetz3 >> >> >> ________________________________________ >> From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on >> behalf >> of Paul Gilmartin <0000000433f07816-dmarc-requ...@listserv.ua.edu> >> Sent: Saturday, September 5, 2020 11:33 PM >> To: IBM-MAIN@LISTSERV.UA.EDU >> Subject: Re: Constant Identifiers >> >> On Sat, 5 Sep 2020 08:13:42 +1000, Robin Vowels wrote: >> > >> >As for writing formulas, I prefer to follow a well-known formula, thus: >> > >> >volume = 4/3 * 3.14159 * radius**3 >> > >> Beware! Than might left-associate as: >> volume = ( 4/3 ) * 3.14159 * radius**3 >> ... and the quotient of integers, 4/3, is 1. >> >> >However, if I'm interested in efficiency, I'd prefer >> > >> >volume = 4 * 3.14159E0 / 3 * radius**3 >> > >> ... (and correct.) >> >> -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
