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fix issue #125 - *norm() return RealScalar and not Scalar

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This commit is contained in:
Gael Guennebaud 2010-05-31 22:46:18 +02:00
parent 8dc947821b
commit e2097c55f8
1 changed files with 9 additions and 7 deletions
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16
Eigen/src/Array/VectorwiseOp.h
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@ -178,14 +178,16 @@ template<typename ExpressionType, int Direction> class VectorwiseOp
public:
typedef typename ExpressionType::Scalar Scalar;
typedef typename ExpressionType::RealScalar RealScalar;
typedef typename ExpressionType::Index Index;
typedef typename ei_meta_if<ei_must_nest_by_value<ExpressionType>::ret,
ExpressionType, const ExpressionType&>::ret ExpressionTypeNested;
template<template<typename _Scalar> class Functor> struct ReturnType
template<template<typename _Scalar> class Functor,
typename Scalar=typename ei_traits<ExpressionType>::Scalar> struct ReturnType
{
typedef PartialReduxExpr<ExpressionType,
Functor<typename ei_traits<ExpressionType>::Scalar>,
Functor<Scalar>,
Direction
> Type;
};
@ -285,7 +287,7 @@ template<typename ExpressionType, int Direction> class VectorwiseOp
* Output: \verbinclude PartialRedux_squaredNorm.out
*
* \sa DenseBase::squaredNorm() */
const typename ReturnType<ei_member_squaredNorm>::Type squaredNorm() const
const typename ReturnType<ei_member_squaredNorm,RealScalar>::Type squaredNorm() const
{ return _expression(); }
/** \returns a row (or column) vector expression of the norm
@ -295,7 +297,7 @@ template<typename ExpressionType, int Direction> class VectorwiseOp
* Output: \verbinclude PartialRedux_norm.out
*
* \sa DenseBase::norm() */
const typename ReturnType<ei_member_norm>::Type norm() const
const typename ReturnType<ei_member_norm,RealScalar>::Type norm() const
{ return _expression(); }
@ -304,7 +306,7 @@ template<typename ExpressionType, int Direction> class VectorwiseOp
* blue's algorithm.
*
* \sa DenseBase::blueNorm() */
const typename ReturnType<ei_member_blueNorm>::Type blueNorm() const
const typename ReturnType<ei_member_blueNorm,RealScalar>::Type blueNorm() const
{ return _expression(); }
@ -313,7 +315,7 @@ template<typename ExpressionType, int Direction> class VectorwiseOp
* underflow and overflow.
*
* \sa DenseBase::stableNorm() */
const typename ReturnType<ei_member_stableNorm>::Type stableNorm() const
const typename ReturnType<ei_member_stableNorm,RealScalar>::Type stableNorm() const
{ return _expression(); }
@ -322,7 +324,7 @@ template<typename ExpressionType, int Direction> class VectorwiseOp
* underflow and overflow using a concatenation of hypot() calls.
*
* \sa DenseBase::hypotNorm() */
const typename ReturnType<ei_member_hypotNorm>::Type hypotNorm() const
const typename ReturnType<ei_member_hypotNorm,RealScalar>::Type hypotNorm() const
{ return _expression(); }
/** \returns a row (or column) vector expression of the sum