[Bug libc/17661] some invalid floating point values should be considered as "nan"

[jsm28 at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=17661

Joseph Myers <jsm28 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #10 from Joseph Myers <jsm28 at gcc dot gnu.org> ---
As discussed, this is not a bug; glibc only aims that such trap representations
do not cause crashes, not that they are treated consistently as any particular
value.  gnulib has been changed to agree:

commit bd38edc81714fc2679b02ef34033f9e15954d32f
Author: Paul Eggert <eggert@cs.ucla.edu>
Date:   Fri Feb 20 18:09:47 2015 -0800

    printf, isinf, etc.: noncanonical != NaN

    Do not require that isinf, printf, etc. treat noncanonical
    values as NaNs.  Instead, require only that they do not crash.
    [...]

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