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Added a specialization of Eigen::numext::real and Eigen::numext::imag for std::complex<T> to be used when compiling a cuda kernel. This is unfortunately necessary to be able to process complex numbers from a CUDA kernel on MacOS.

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This commit is contained in:
Benoit Steiner 2016-09-22 15:52:23 -07:00
parent 3946768916
commit 2a69290ddb
1 changed files with 26 additions and 0 deletions
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26
Eigen/src/Core/MathFunctions.h
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@ -97,6 +97,19 @@ struct real_default_impl<Scalar,true>
template<typename Scalar> struct real_impl : real_default_impl<Scalar> {}; template<typename Scalar> struct real_impl : real_default_impl<Scalar> {};
#ifdef __CUDA_ARCH__
template<typename T>
struct real_impl<std::complex<T> >
{
typedef T RealScalar;
EIGEN_DEVICE_FUNC
static inline T run(const std::complex<T>& x)
{
return x.real();
}
};
#endif
template<typename Scalar> template<typename Scalar>
struct real_retval struct real_retval
{ {
@ -132,6 +145,19 @@ struct imag_default_impl<Scalar,true>
template<typename Scalar> struct imag_impl : imag_default_impl<Scalar> {}; template<typename Scalar> struct imag_impl : imag_default_impl<Scalar> {};
#ifdef __CUDA_ARCH__
template<typename T>
struct imag_impl<std::complex<T> >
{
typedef T RealScalar;
EIGEN_DEVICE_FUNC
static inline T run(const std::complex<T>& x)
{
return x.imag();
}
};
#endif
template<typename Scalar> template<typename Scalar>
struct imag_retval struct imag_retval
{ {