[Bug c++/49813] [C++0x] sinh vs asinh vs constexpr

["paolo.carlini at oracle dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49813

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|libstdc++                   |c++

--- Comment #30 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-07-25 10:51:19 UTC ---
Jason, looks like we have a remaining curious C++ front-end issue with isinf
for long double, see the below. Can you have a look? Thanks!

Paolo.

//////////////////

inline constexpr bool
isinf(long double __x)
{ return __builtin_isinf(__x); }

inline constexpr bool
isinf(double __x)
{ return __builtin_isinf(__x); }

inline constexpr bool
isnan(long double __x)
{ return __builtin_isnan(__x); }

int main()
{
  constexpr long double num1 = __builtin_isinf(1.l); // Ok.

  constexpr long double num2 = isinf(1.l);           // Error.

  constexpr double      num3 = isinf(1.);            // Ok.

  constexpr long double num4 = isnan(1.l);           // Ok.
}