Re: port-mips/57680: printf("%.1f") shows wrong resultsonR3000mipseb

[Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>]

The following reply was made to PR port-mips/57680; it has been noted by GNATS.

From: Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>
To: riastradh%NetBSD.org@localhost
Cc: gnats-bugs%netbsd.org@localhost, tsutsui%ceres.dti.ne.jp@localhost
Subject: Re: port-mips/57680: printf("%.1f") shows wrong resultsonR3000mipseb
Date: Sun, 5 Nov 2023 03:05:04 +0900

 > > I doubt this problem was really compiler issue and
 > > I wonder if it's okay to assume "FE_TONEAREST" is default
 > > because FE_TOZERO works.
 > 
 > FE_TONEAREST is the correct default.  This has been the standard in
 > IEEE 754 since 1985; essentially all hardware since then will
 > implement it as the default, and essentially all numerical software
 > that relies on any rounding mode will rely on that as the default.
 
 Even in case that libm is not linked?
 
 Anyway, I'm a bit disgusted because everyone complains
 "investigate and fix actual problem rather than temprary workaround"
 without MD analysis.
 
 ---
 Izumi Tsutsui