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Fix NumTraits<AutoDiff>

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This commit is contained in:
Gael Guennebaud 2016-06-24 11:34:02 +02:00
parent fa39f81b48
commit ce90647fa5
1 changed files with 19 additions and 1 deletions
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20
unsupported/Eigen/src/AutoDiff/AutoDiffScalar.h
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@ -525,6 +525,23 @@ struct ScalarBinaryOpTraits<typename DerType::Scalar,AutoDiffScalar<DerType>, Bi
typedef AutoDiffScalar<DerType> ReturnType; typedef AutoDiffScalar<DerType> ReturnType;
}; };
// The following is an attempt to let Eigen's known about expression template, but that's more tricky!
// template<typename DerType, typename BinOp>
// struct ScalarBinaryOpTraits<AutoDiffScalar<DerType>,AutoDiffScalar<DerType>, BinOp>
// {
// enum { Defined = 1 };
// typedef AutoDiffScalar<typename DerType::PlainObject> ReturnType;
// };
//
// template<typename DerType1,typename DerType2, typename BinOp>
// struct ScalarBinaryOpTraits<AutoDiffScalar<DerType1>,AutoDiffScalar<DerType2>, BinOp>
// {
// enum { Defined = 1 };//internal::is_same<typename DerType1::Scalar,typename DerType2::Scalar>::value };
// typedef AutoDiffScalar<typename DerType1::PlainObject> ReturnType;
// };
#define EIGEN_AUTODIFF_DECLARE_GLOBAL_UNARY(FUNC,CODE) \ #define EIGEN_AUTODIFF_DECLARE_GLOBAL_UNARY(FUNC,CODE) \
template<typename DerType> \ template<typename DerType> \
inline const Eigen::AutoDiffScalar< \ inline const Eigen::AutoDiffScalar< \
@ -645,9 +662,10 @@ template<typename DerType> struct NumTraits<AutoDiffScalar<DerType> >
: NumTraits< typename NumTraits<typename DerType::Scalar>::Real > : NumTraits< typename NumTraits<typename DerType::Scalar>::Real >
{ {
typedef AutoDiffScalar<Matrix<typename NumTraits<typename DerType::Scalar>::Real,DerType::RowsAtCompileTime,DerType::ColsAtCompileTime, typedef AutoDiffScalar<Matrix<typename NumTraits<typename DerType::Scalar>::Real,DerType::RowsAtCompileTime,DerType::ColsAtCompileTime,
DerType::Options, DerType::MaxRowsAtCompileTime, DerType::MaxColsAtCompileTime> > Real; 0, DerType::MaxRowsAtCompileTime, DerType::MaxColsAtCompileTime> > Real;
typedef AutoDiffScalar<DerType> NonInteger; typedef AutoDiffScalar<DerType> NonInteger;
typedef AutoDiffScalar<DerType> Nested; typedef AutoDiffScalar<DerType> Nested;
typedef typename NumTraits<typename DerType::Scalar>::Literal Literal;
enum{ enum{
RequireInitialization = 1 RequireInitialization = 1
}; };