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| author |  Antonio Sanchez <cantonios@google.com> | 2021-05-07 08:24:32 -0700 |
|---|---|---|
| committer |  Rasmus Munk Larsen <rmlarsen@google.com> | 2021-05-07 16:26:57 +0000 |
| commit | 90e9a33e1ce3e4e7663dd67e6c1f225afaf5c206 (patch) | |
| tree | cee0ab2ff0da2c4785a9a97546b206933869fc9e /Eigen/src | |
| parent | 722ca0b665666f3af579002ad752541d7319d1b6 (diff) | |
Fix numext::arg return type.
The cxx11 path for `numext::arg` incorrectly returned the complex type
instead of the real type, leading to compile errors. Fixed this and
added tests.
Related to !477, which uncovered the issue.
Diffstat (limited to 'Eigen/src')
| -rw-r--r-- | Eigen/src/Core/MathFunctions.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/Eigen/src/Core/MathFunctions.h b/Eigen/src/Core/MathFunctions.h index 29201214f..67b1d8263 100644 --- a/Eigen/src/Core/MathFunctions.h +++ b/Eigen/src/Core/MathFunctions.h @@ -592,8 +592,9 @@ struct arg_default_impl; template<typename Scalar> struct arg_default_impl<Scalar, true> { + typedef typename NumTraits<Scalar>::Real RealScalar; EIGEN_DEVICE_FUNC - static inline Scalar run(const Scalar& x) + static inline RealScalar run(const Scalar& x) { #if defined(EIGEN_HIP_DEVICE_COMPILE) // HIP does not seem to have a native device side implementation for the math routine "arg" @@ -601,7 +602,7 @@ struct arg_default_impl<Scalar, true> { #else EIGEN_USING_STD(arg); #endif - return static_cast<Scalar>(arg(x)); + return static_cast<RealScalar>(arg(x)); } }; @@ -612,7 +613,7 @@ struct arg_default_impl<Scalar, false> { EIGEN_DEVICE_FUNC static inline RealScalar run(const Scalar& x) { - return (x < Scalar(0)) ? Scalar(EIGEN_PI) : Scalar(0); + return (x < Scalar(0)) ? RealScalar(EIGEN_PI) : RealScalar(0); } }; #else @@ -623,7 +624,7 @@ struct arg_default_impl EIGEN_DEVICE_FUNC static inline RealScalar run(const Scalar& x) { - return (x < Scalar(0)) ? Scalar(EIGEN_PI) : Scalar(0); + return (x < RealScalar(0)) ? RealScalar(EIGEN_PI) : RealScalar(0); } }; |