[Bug c++/57484] 'std::numeric_limits< T >::signaling_NaN()' signaling-bit is incorrect for x86 32-bit.

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57484

--- Comment #5 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Just to clarify that this is neither a library neither a C++ front-end issue:
<limits> just uses the various __builtin_nans*