[Bug c++/51364] C++ interoperability with ISO-C extension DFP types requires explicit typedefs.

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51364

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-11-30 
18:57:38 UTC ---
n2732 says they should be defined in <float.h>

http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2732.pdf