Groups > comp.lang.c > #19050

Re: Floating point support not loaded

From	Markus Wichmann <nullplan@gmx.net>
Newsgroups	comp.lang.c
Subject	Re: Floating point support not loaded
Date	2012-03-26 13:31 +0200
Organization	1&1 Internet AG
Message-ID	<uk0649-8mv.ln1@voyager.wichi.de.vu> (permalink)
References	(2 earlier) <9a135814-206f-482c-a3f0-6e199b690b31@l7g2000vbw.googlegroups.com> <2ce3e2be-5693-4766-847b-363c75ac22fd@i2g2000vbv.googlegroups.com> <lnlimphees.fsf@nuthaus.mib.org> <20m549-jhr.ln1@voyager.wichi.de.vu> <jkphi1$g5j$1@dont-email.me>

Show all headers | View raw

On 26.03.2012 12:48, James Kuyper wrote:
> On 03/26/2012 04:29 AM, Markus Wichmann wrote:
>> That's another can of worms. The way I see it, the designers of that
>> system's *scanf() did a bad job, because they depend on floating-point
>> support at runtime, but don't tell anyone during link time. My take on
>> it is that the compiler tries linking without libm and if that doesn't
>> work, tries it with libm. ...
> 
> I presume that one of those two "libm"s was supposed to be something else?

No. Perhaps I should add some emphasis: The linker first tries to link
_without_ libm. Then, if that doesn't work, the link is tried again,
this time _with_ libm.

Note that that is one possible explanation for the weird behaviour the
OP is experiencing. The real reason may be something entirely different.
Still, what I meant by the above is that the compiler can't be faulted
for mistakes of linker and library.

Ciao,
Markus

Thread

Floating point support not loaded lolzy@live.nl - 2012-03-24 03:04 -0700
  Re: Floating point support not loaded Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-03-24 04:15 -0700
  Re: Floating point support not loaded Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-03-24 08:05 -0400
    Re: Floating point support not loaded lolzy@live.nl - 2012-03-24 10:15 -0700
      Re: Floating point support not loaded lolzy@live.nl - 2012-03-24 10:51 -0700
        Re: Floating point support not loaded Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-03-24 14:27 -0400
        Re: Floating point support not loaded Keith Thompson <kst-u@mib.org> - 2012-03-24 14:34 -0700
          Re: Floating point support not loaded Markus Wichmann <nullplan@gmx.net> - 2012-03-26 10:29 +0200
            Re: Floating point support not loaded James Kuyper <jameskuyper@verizon.net> - 2012-03-26 06:48 -0400
              Re: Floating point support not loaded Markus Wichmann <nullplan@gmx.net> - 2012-03-26 13:31 +0200
                Re: Floating point support not loaded James Kuyper <jameskuyper@verizon.net> - 2012-03-26 08:42 -0400

csiph-web