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bug #872: Avoid deprecated binder1st/binder2nd usage by providing custom functors for comparison operators

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This commit is contained in:
Christoph Hertzberg
2015-05-07 17:28:40 +02:00
parent 4a936974a5
commit 494fa991c3
5 changed files with 102 additions and 25 deletions
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42
Eigen/src/Core/functors/BinaryFunctors.h
View File

@@ -154,6 +154,48 @@ struct functor_traits<scalar_max_op<Scalar> > {
};
};
/** \internal
* \brief Template functors for comparison of two scalars
* \todo Implement packet-comparisons
*/
template<typename Scalar, ComparisonName cmp> struct scalar_cmp_op;
template<typename Scalar, ComparisonName cmp>
struct functor_traits<scalar_cmp_op<Scalar, cmp> > {
enum {
Cost = NumTraits<Scalar>::AddCost,
PacketAccess = false
};
};
template<ComparisonName Cmp, typename Scalar>
struct result_of<scalar_cmp_op<Scalar, Cmp>(Scalar,Scalar)> {
typedef bool type;
};
template<typename Scalar> struct scalar_cmp_op<Scalar, cmp_EQ> {
EIGEN_EMPTY_STRUCT_CTOR(scalar_cmp_op)
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE bool operator()(const Scalar& a, const Scalar& b) const {return a==b;}
};
template<typename Scalar> struct scalar_cmp_op<Scalar, cmp_LT> {
EIGEN_EMPTY_STRUCT_CTOR(scalar_cmp_op)
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE bool operator()(const Scalar& a, const Scalar& b) const {return a<b;}
};
template<typename Scalar> struct scalar_cmp_op<Scalar, cmp_LE> {
EIGEN_EMPTY_STRUCT_CTOR(scalar_cmp_op)
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE bool operator()(const Scalar& a, const Scalar& b) const {return a<=b;}
};
template<typename Scalar> struct scalar_cmp_op<Scalar, cmp_UNORD> {
EIGEN_EMPTY_STRUCT_CTOR(scalar_cmp_op)
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE bool operator()(const Scalar& a, const Scalar& b) const {return !(a<=b || b<=a);}
};
template<typename Scalar> struct scalar_cmp_op<Scalar, cmp_NEQ> {
EIGEN_EMPTY_STRUCT_CTOR(scalar_cmp_op)
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE bool operator()(const Scalar& a, const Scalar& b) const {return a!=b;}
};
/** \internal
* \brief Template functor to compute the hypot of two scalars
*

10
Eigen/src/Core/util/Constants.h
View File

@@ -492,6 +492,16 @@ struct IndexBased {};
// evaluator based on iterators to access coefficients.
struct IteratorBased {};
/** \internal
* Constants for comparison functors
*/
enum ComparisonName {
cmp_EQ = 0,
cmp_LT = 1,
cmp_LE = 2,
cmp_UNORD = 3,
cmp_NEQ = 4
};
} // end namespace internal
} // end namespace Eigen