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RTOpPack_ROpMinIndex.hpp
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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 
50 namespace RTOpPack {
51 
52 
54 template<class Scalar>
56 public:
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 
74 template<class Scalar>
76 public:
78  void operator()(
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 
103 template<class Scalar>
106  Scalar,
107  ScalarIndex<Scalar>,
108  ROpMinIndexEleWiseReductionOp<Scalar>,
109  ROpMinIndexReductObjReductionOp<Scalar> >
110 {
111 public:
114  {
115  this->setOpNameBase("ROpMinIndex");
116  this->initReductObjValue(
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
Base class for coordinate-variant scalar reduction RTOps with one input vector.
Teuchos_Ordinal index_type
Returns the minimum element and its index: result.scalar = x(k) and result.index = k such that x(k) &lt;...
Simple struct for a Scalar and an Ordinal object.
ScalarIndex< Scalar > operator()(const ReductTarget &reduct_obj) const
Abstract base class for all reduction objects.
void operator()(const index_type i, const Scalar &v0, ScalarIndex< Scalar > &reduct) const
void setOpNameBase(const std::string &op_name_base)
Just set the operator name.
void operator()(const ScalarIndex< Scalar > &in_reduct, ScalarIndex< Scalar > &inout_reduct) const