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RTOpPack_ROpMinIndex.hpp
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4// RTOp: Interfaces and Support Software for Vector Reduction Transformation
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42
43#ifndef RTOPPACK_ROP_MIN_INDEX_HPP
44#define RTOPPACK_ROP_MIN_INDEX_HPP
45
46
47#include "RTOpPack_RTOpTHelpers.hpp"
48
49
50namespace RTOpPack {
51
52
54template<class Scalar>
56public:
58 void operator()(const index_type i, const Scalar &v0,
59 ScalarIndex<Scalar> &reduct) const
60 {
61 if(
62 v0 < reduct.scalar
63 ||
64 ( v0 == reduct.scalar && i < reduct.index )
65 )
66 {
67 reduct = ScalarIndex<Scalar>(v0, i);
68 }
69 }
70};
71
72
74template<class Scalar>
76public:
79 const ScalarIndex<Scalar>& in_reduct, ScalarIndex<Scalar>& inout_reduct
80 ) const
81 {
82 if(
83 in_reduct.scalar < inout_reduct.scalar
84 ||
85 (
86 in_reduct.scalar == inout_reduct.scalar
87 &&
88 in_reduct.index < inout_reduct.index
89 )
90 )
91 {
92 inout_reduct = in_reduct;
93 }
94 }
95};
96
97
103template<class Scalar>
106 Scalar,
107 ScalarIndex<Scalar>,
108 ROpMinIndexEleWiseReductionOp<Scalar>,
109 ROpMinIndexReductObjReductionOp<Scalar> >
110{
111public:
114 {
115 this->setOpNameBase("ROpMinIndex");
116 this->initReductObjValue(
117 ScalarIndex<Scalar>(+ScalarTraits<Scalar>::rmax(), -1));
118 }
120 ScalarIndex<Scalar> operator()(const ReductTarget& reduct_obj) const
121 { return this->getRawVal(reduct_obj); }
122};
123
124
125} // namespace RTOpPack
126
127
128#endif // RTOPPACK_ROP_MIN_INDEX_HPP
void operator()(const index_type i, const Scalar &v0, ScalarIndex< Scalar > &reduct) const
void operator()(const ScalarIndex< Scalar > &in_reduct, ScalarIndex< Scalar > &inout_reduct) const
Returns the minimum element and its index: result.scalar = x(k) and result.index = k such that x(k) <...
ScalarIndex< Scalar > operator()(const ReductTarget &reduct_obj) const
const ConcreteReductObj & getRawVal(const ReductTarget &reduct_obj) const
Base class for coordinate-variant scalar reduction RTOps with one input vector.
void setOpNameBase(const std::string &op_name_base)
Just set the operator name.
Abstract base class for all reduction objects.
Teuchos_Ordinal index_type