http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50880
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|wrong-code |
CC| |g...@integrable-solutions.ne
| |t
--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-10-27
09:24:26 UTC ---
Thus, to understand and clarify why this has not been noticed so far, you are
on a target which doesn't support in the underlying C library these complex
functions, right? Because normally (eg, on Linux) these days we just forward to
__builtin_cacosh*, the code you are touching is just a "surrogate", a
"fallback", which doesn't get right all the special cases, NaNs, infinity.
Anyway, a similar tweak would touch also the C++11 version in std::
Gaby, can you have a look to this, double check the patch? For your convenience
the surrounding code is:
template<typename _Tp>
std::complex<_Tp>
__complex_acosh(const std::complex<_Tp>& __z)
{
std::complex<_Tp> __t((__z.real() - __z.imag())
* (__z.real() + __z.imag()) - _Tp(1.0),
_Tp(2.0) * __z.real() * __z.imag());
__t = std::sqrt(__t);
return std::log(__t + __z);
}
