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more changes in ScalarMultiple, reintroduce FloatingPoint in NumTraits, improve

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examples
This commit is contained in:
Benoit Jacob
2007-12-26 09:25:00 +00:00
parent 05a49547e1
commit 6b9370e0f0
7 changed files with 57 additions and 25 deletions
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4
Eigen/Core/NumTraits.h
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@@ -31,6 +31,7 @@ template<typename T> struct NumTraits;
template<> struct NumTraits<int>
{
typedef int Real;
typedef double FloatingPoint;
static const bool IsComplex = false;
static const bool HasFloatingPoint = false;
};
@@ -38,6 +39,7 @@ template<> struct NumTraits<int>
template<> struct NumTraits<float>
{
typedef float Real;
typedef float FloatingPoint;
static const bool IsComplex = false;
static const bool HasFloatingPoint = true;
};
@@ -45,6 +47,7 @@ template<> struct NumTraits<float>
template<> struct NumTraits<double>
{
typedef double Real;
typedef double FloatingPoint;
static const bool IsComplex = false;
static const bool HasFloatingPoint = true;
};
@@ -52,6 +55,7 @@ template<> struct NumTraits<double>
template<typename _Real> struct NumTraits<std::complex<_Real> >
{
typedef _Real Real;
typedef std::complex<_Real> FloatingPoint;
static const bool IsComplex = true;
static const bool HasFloatingPoint = NumTraits<Real>::HasFloatingPoint;
};

6
Eigen/Core/ScalarMultiple.h
View File

@@ -76,12 +76,14 @@ operator*(FactorType scalar, \
} \
\
template<typename Scalar, typename Derived> \
const ScalarMultiple<FactorType, Derived> \
const ScalarMultiple<typename NumTraits<FactorType>::FloatingPoint, Derived> \
operator/(const MatrixBase<Scalar, Derived>& matrix, \
FactorType scalar) \
{ \
assert(NumTraits<Scalar>::HasFloatingPoint); \
return matrix * (static_cast<Scalar>(1) / scalar); \
return matrix * (static_cast< \
typename NumTraits<FactorType>::FloatingPoint \
>(1) / scalar); \
} \
\
template<typename Scalar, typename Derived> \