[Cfp-interest] nextup()

Fred J. Tydeman tydeman at tybor.com
Thu Aug 2 10:21:25 PDT 2018


Other necks() questions.

Many of the math functions in Annex F in C17, have words like:
The returned values are exact and are independent of the current rounding direction mode.

Perhaps those should be added to necks().

Also, if long double is a pair of doubles, what is nextup(1.L)?
Is it
 1.L + LDBL_EPSILON
or
 1.L + LDBL_TRUE_MIN == 1.L + LDBL_EPSILON * LDBL_MIN


---
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.



More information about the Cfp-interest mailing list