https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85466
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jwakely.gcc at gmail dot com
Component|c++ |libstdc++
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
I see sth like
template<typename _RealType, size_t __bits,
typename _UniformRandomNumberGenerator>
_RealType
generate_canonical(_UniformRandomNumberGenerator& __urng)
{
...
__ret = std::nextafter(_RealType(1), _RealType(0));
instantiated as
_RealType std::generate_canonical(_UniformRandomNumberGenerator&) [with
_RealType = double; long unsigned int __bits = 53;
_UniformRandomNumberGenerator = std::mersenne_twister_engine<long unsigned int,
32, 624, 397, 31, 2567483615, 11, 4294967295, 7, 2636928640, 15, 4022730752,
18, 1812433253>] (struct mersenne_twister_engine & __urng)
{
...
const long double __r;
^^^
(but that's unused it seems)
...
__ret = nextafter (1.0e+0, 0.0);
and cmath containing
constexpr float
nextafter(float __x, float __y)
{ return __builtin_nextafterf(__x, __y); }
constexpr long double
nextafter(long double __x, long double __y)
{ return __builtin_nextafterl(__x, __y); }
template<typename _Tp, typename _Up>
constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type
nextafter(_Tp __x, _Up __y)
{
typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type;
return nextafter(__type(__x), __type(__y));
}
which means std::nextafter will use the long double variant?
