[Cfp-interest 1811] Re: Exact subnormal results

Wed Oct 21 21:34:02 PDT 2020

On Wed, 21 Oct 2020 18:38:26 -0700 (PDT) David Hough CFP wrote:
>
>So what does C range error mean for non-754?    A small result, certainly,
>but does it matter if exact or inexact?

IBM S/360 hex FP flushes underflow results to zero.
Not sure if there are any other non-IEEEE-754 FP still in use.

---
Fred J. Tydeman        Tydeman Consulting
tydeman at tybor.com      Testing, numerics, programming
+1 (702) 608-6093      Vice-chair of PL22.11 (ANSI "C")
Sample C99+FPCE tests: http://www.tybor.com
Savers sleep well, investors eat well, spenders work forever.