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Add generic implementation of conj_helper for custom complex types.

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This commit is contained in:
Gael Guennebaud 2016-08-29 09:42:29 +02:00
parent fd9caa1bc2
commit 0decc31aa8
1 changed files with 17 additions and 4 deletions
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21
Eigen/src/Core/util/BlasUtil.h
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@ -44,16 +44,29 @@ template<bool Conjugate> struct conj_if;
template<> struct conj_if<true> {
template<typename T>
inline T operator()(const T& x) { return numext::conj(x); }
inline T operator()(const T& x) const { return numext::conj(x); }
template<typename T>
inline T pconj(const T& x) { return internal::pconj(x); }
inline T pconj(const T& x) const { return internal::pconj(x); }
};
template<> struct conj_if<false> {
template<typename T>
inline const T& operator()(const T& x) { return x; }
inline const T& operator()(const T& x) const { return x; }
template<typename T>
inline const T& pconj(const T& x) { return x; }
inline const T& pconj(const T& x) const { return x; }
};
// Generic implementation for custom complex types.
template<typename LhsScalar, typename RhsScalar, bool ConjLhs, bool ConjRhs>
struct conj_helper
{
typedef typename ScalarBinaryOpTraits<LhsScalar,RhsScalar>::ReturnType Scalar;
EIGEN_STRONG_INLINE Scalar pmadd(const LhsScalar& x, const RhsScalar& y, const Scalar& c) const
{ return padd(c, pmul(x,y)); }
EIGEN_STRONG_INLINE Scalar pmul(const LhsScalar& x, const RhsScalar& y) const
{ return conj_if<ConjLhs>()(x) * conj_if<ConjRhs>()(y); }
};
template<typename Scalar> struct conj_helper<Scalar,Scalar,false,false>