Re: lib/56148: lib/libc/stdio/t_printf:snprintf_float test randomly fails

[Christos Zoulas <christos%zoulas.com@localhost>]

The following reply was made to PR lib/56148; it has been noted by GNATS.

From: Christos Zoulas <christos%zoulas.com@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: lib-bug-people%netbsd.org@localhost,
 gnats-admin%netbsd.org@localhost,
 netbsd-bugs%netbsd.org@localhost,
 Andreas Gustafsson <gson%gson.org@localhost>
Subject: Re: lib/56148: lib/libc/stdio/t_printf:snprintf_float test randomly
 fails
Date: Sun, 9 May 2021 13:27:39 -0400

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 I am not aware of any libc implementations that don't allocate memory to =
 do double-to-ascii conversions.
 =46rom what I've seen Solaris does the best here calling malloc only in =
 __big_float_times_power().
 I don't see us replacing gdtoa anytime soon, so we should probably =
 document this in the snprintf() man pages.
 We could also file a bug report with opengroup/posix to make ENOMEM =
 legal for floating point conversions.
 
 christos
 
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