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

[jakub at gcc dot gnu.org]

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

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jakub at gcc dot gnu.org

--- Comment #51 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-07-28 06:47:43 UTC ---
It isn't hard to implement it ourselves just on the REAL_VALUE_TYPE type.
We'd just need to handle a few special cases (e.g. x NaN or y NaN I guess we'd
normally just don't optimize), and then we'd just
add_significand/sub_significand of all zeros but LSB bit set, if it returns
non-zero, bump/decrease exponent if possible, if not possible, give up/set to
zero.