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From: Szabolcs Nagy <nsz@port70.net>
To: musl@lists.openwall.com
Subject: Re: printf issues
Date: Fri, 4 Apr 2014 16:56:34 +0200	[thread overview]
Message-ID: <20140404145634.GF3034@port70.net> (raw)
In-Reply-To: <CANv4PNk=i5fx62bK3SHdusu1kWm9yU26qMnVHYYmnL74=DACig@mail.gmail.com>

* Morten Welinder <mwelinder@gmail.com> [2014-04-04 10:35:00 -0400]:
> > Do you have any ideas for a clean way to avoid this
> > assumption without having to compute the value at runtime?
> 
> I don't know if ldexpl will get constant folded by the compiler, but if not,
> I think (2.0L/LDBL_EPSILON) ought to work as a replacement.  It's not
> as likely to get prices at the obfuscated C contents, though.

ldexpl is not ok
(cannot get constant folded in free-standing mode unless
we use __builtin_ldexpl on compilers that support that)

the epsilon based solution looks good though


  reply	other threads:[~2014-04-04 14:56 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-04 13:32 Morten Welinder
2014-04-04 14:12 ` Rich Felker
2014-04-04 14:15 ` Szabolcs Nagy
2014-04-04 14:35   ` Morten Welinder
2014-04-04 14:56     ` Szabolcs Nagy [this message]
2014-04-04 15:07     ` Rich Felker
2014-04-04 17:42       ` Morten Welinder
2014-04-04 18:54         ` Szabolcs Nagy
2014-04-04 20:01           ` Morten Welinder
2014-04-04 20:22             ` Morten Welinder
2014-04-04 21:08               ` Rich Felker
2014-04-04 22:50                 ` Morten Welinder
2014-04-05  0:01                   ` Morten Welinder
2014-04-05  1:41                     ` Rich Felker
2014-04-07  7:29                     ` Rich Felker
2014-04-07 13:40                       ` Morten Welinder
2014-04-07 14:13                         ` Morten Welinder
2014-04-07 15:36                           ` Szabolcs Nagy
2014-04-07 18:04                             ` Rich Felker
2014-04-04 20:54             ` Szabolcs Nagy
2014-04-04 21:02             ` Rich Felker
2014-04-05  2:08               ` Morten Welinder
2014-04-05  2:50                 ` Rich Felker
2014-04-06 23:07                   ` Szabolcs Nagy
2014-04-04 21:00           ` Rich Felker
2014-04-04 21:10             ` Szabolcs Nagy
2014-04-04 20:58         ` Rich Felker

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