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Fix bugs in log1p and expm1 where repeated using statements would clobber each other.

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Add specializations for complex types since std::log1p and std::exp1m do not support complex.
This commit is contained in:
Rasmus Munk Larsen 2019-08-08 16:27:32 -07:00
parent 85928e5f47
commit d55d392e7b
1 changed files with 22 additions and 2 deletions
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24
Eigen/src/Core/MathFunctions.h
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@ -512,12 +512,22 @@ struct expm1_impl {
EIGEN_STATIC_ASSERT_NON_INTEGER(Scalar) EIGEN_STATIC_ASSERT_NON_INTEGER(Scalar)
#if EIGEN_HAS_CXX11_MATH #if EIGEN_HAS_CXX11_MATH
using std::expm1; using std::expm1;
#endif #else
using std_fallback::expm1; using std_fallback::expm1;
#endif
return expm1(x); return expm1(x);
} }
}; };
// Specialization for complex types that are not supported by std::expm1.
template <typename RealScalar>
struct expm1_impl<std::complex<RealScalar> > {
EIGEN_DEVICE_FUNC static inline std::complex<RealScalar> run(
const std::complex<RealScalar>& x) {
EIGEN_STATIC_ASSERT_NON_INTEGER(RealScalar)
return std_fallback::expm1(x);
}
};
template<typename Scalar> template<typename Scalar>
struct expm1_retval struct expm1_retval
@ -549,12 +559,22 @@ struct log1p_impl {
EIGEN_STATIC_ASSERT_NON_INTEGER(Scalar) EIGEN_STATIC_ASSERT_NON_INTEGER(Scalar)
#if EIGEN_HAS_CXX11_MATH #if EIGEN_HAS_CXX11_MATH
using std::log1p; using std::log1p;
#endif #else
using std_fallback::log1p; using std_fallback::log1p;
#endif
return log1p(x); return log1p(x);
} }
}; };
// Specialization for complex types that are not supported by std::log1p.
template <typename RealScalar>
struct log1p_impl<std::complex<RealScalar> > {
EIGEN_DEVICE_FUNC static inline std::complex<RealScalar> run(
const std::complex<RealScalar>& x) {
EIGEN_STATIC_ASSERT_NON_INTEGER(RealScalar)
return std_fallback::log1p(x);
}
};
template<typename Scalar> template<typename Scalar>
struct log1p_retval struct log1p_retval