[Bug c++/48577] [C++0x] [4.6 Regression] "unexpected ast of kind unordered_expr" using isnan()

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48577

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011.04.12 16:44:29
                 CC|                            |jason at gcc dot gnu.org
            Summary|"unexpected ast of kind     |[C++0x] [4.6 Regression]
                   |unordered_expr" using       |"unexpected ast of kind
                   |isnan()                     |unordered_expr" using
                   |                            |isnan()
     Ever Confirmed|0                           |1

--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-04-12 
16:44:29 UTC ---
Eh, this is just crazy (normally should never happen that with -std=gnu++0x we
accept less than with -std=c++0x).

I can reproduce only on the 4_6-branch, not mainline.