diff options
Diffstat (limited to 'Eigen/src/Core/arch/Default/BFloat16.h')
| -rw-r--r-- | Eigen/src/Core/arch/Default/BFloat16.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/Eigen/src/Core/arch/Default/BFloat16.h b/Eigen/src/Core/arch/Default/BFloat16.h index f9c6e76a9..30c998249 100644 --- a/Eigen/src/Core/arch/Default/BFloat16.h +++ b/Eigen/src/Core/arch/Default/BFloat16.h @@ -34,8 +34,9 @@ namespace Eigen { struct bfloat16; -// Since we allow implicit conversion of bfloat16 to float and double, we -// need to make the cast to complex a bit more explicit +// explicit conversion operators are no available before C++11 so we first cast +// bfloat16 to RealScalar rather than to std::complex<RealScalar> directly +#if !EIGEN_HAS_CXX11 namespace internal { template <typename RealScalar> struct cast_impl<bfloat16, std::complex<RealScalar> > { @@ -45,6 +46,7 @@ struct cast_impl<bfloat16, std::complex<RealScalar> > { } }; } // namespace internal +#endif // EIGEN_HAS_CXX11 namespace bfloat16_impl { @@ -129,10 +131,10 @@ struct bfloat16 : public bfloat16_impl::bfloat16_base { EIGEN_DEVICE_FUNC EIGEN_EXPLICIT_CAST(unsigned long long) const { return static_cast<unsigned long long>(bfloat16_to_float(*this)); } - EIGEN_DEVICE_FUNC operator float() const { + EIGEN_DEVICE_FUNC EIGEN_EXPLICIT_CAST(float) const { return bfloat16_impl::bfloat16_to_float(*this); } - EIGEN_DEVICE_FUNC operator double() const { + EIGEN_DEVICE_FUNC EIGEN_EXPLICIT_CAST(double) const { return static_cast<double>(bfloat16_impl::bfloat16_to_float(*this)); } template<typename RealScalar> |