diff options
| author |  Gael Guennebaud <g.gael@free.fr> | 2013-04-16 15:10:40 +0200 |
|---|---|---|
| committer | Gael Guennebaud <g.gael@free.fr> | 2013-04-16 15:10:40 +0200 |
| commit | 94e20f485c44731230095dbf8a7344fc6ea4b431 (patch) | |
| tree | f8b97bbe8f36cfcce76108ca5d9648844fb1bec1 /Eigen | |
| parent | d4b0c19a463692e3ef4fb9c70ad1419d097a1dcf (diff) | |
Big 564: add hasNaN and isFinite members
Diffstat (limited to 'Eigen')
| -rw-r--r-- | Eigen/src/Core/BooleanRedux.h | 20 | ||||
| -rw-r--r-- | Eigen/src/Core/DenseBase.h | 5 |
2 files changed, 23 insertions, 2 deletions
diff --git a/Eigen/src/Core/BooleanRedux.h b/Eigen/src/Core/BooleanRedux.h index a235a14e6..f6afeb034 100644 --- a/Eigen/src/Core/BooleanRedux.h +++ b/Eigen/src/Core/BooleanRedux.h @@ -129,6 +129,26 @@ inline typename DenseBase<Derived>::Index DenseBase<Derived>::count() const return derived().template cast<bool>().template cast<Index>().sum(); } +/** \returns true is \c *this contains at least one Not A Number (NaN). + * + * \sa isFinite() + */ +template<typename Derived> +inline bool DenseBase<Derived>::hasNaN() const +{ + return !((derived().array()==derived().array()).all()); +} + +/** \returns true if \c *this contains only finite numbers, i.e., no NaN and no +/-INF values. + * + * \sa hasNaN() + */ +template<typename Derived> +inline bool DenseBase<Derived>::isFinite() const +{ + return !((derived()-derived()).hasNaN()); +} + } // end namespace Eigen #endif // EIGEN_ALLANDANY_H diff --git a/Eigen/src/Core/DenseBase.h b/Eigen/src/Core/DenseBase.h index c17364f30..dfdf6c4a8 100644 --- a/Eigen/src/Core/DenseBase.h +++ b/Eigen/src/Core/DenseBase.h @@ -336,6 +336,9 @@ template<typename Derived> class DenseBase bool isConstant(const Scalar& value, const RealScalar& prec = NumTraits<Scalar>::dummy_precision()) const; bool isZero(const RealScalar& prec = NumTraits<Scalar>::dummy_precision()) const; bool isOnes(const RealScalar& prec = NumTraits<Scalar>::dummy_precision()) const; + + inline bool hasNaN() const; + inline bool isFinite() const; inline Derived& operator*=(const Scalar& other); inline Derived& operator/=(const Scalar& other); @@ -415,8 +418,6 @@ template<typename Derived> class DenseBase return derived().coeff(0,0); } -/////////// Array module /////////// - bool all(void) const; bool any(void) const; Index count() const; |