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Sacado_Fad_Ops_Fwd.hpp
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1// @HEADER
2// ***********************************************************************
3//
4// Sacado Package
5// Copyright (2006) Sandia Corporation
6//
7// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
8// the U.S. Government retains certain rights in this software.
9//
10// This library is free software; you can redistribute it and/or modify
11// it under the terms of the GNU Lesser General Public License as
12// published by the Free Software Foundation; either version 2.1 of the
13// License, or (at your option) any later version.
14//
15// This library is distributed in the hope that it will be useful, but
16// WITHOUT ANY WARRANTY; without even the implied warranty of
17// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18// Lesser General Public License for more details.
19//
20// You should have received a copy of the GNU Lesser General Public
21// License along with this library; if not, write to the Free Software
22// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
23// USA
24// Questions? Contact David M. Gay (dmgay@sandia.gov) or Eric T. Phipps
25// (etphipp@sandia.gov).
26//
27// ***********************************************************************
28//
29// The forward-mode AD classes in Sacado are a derivative work of the
30// expression template classes in the Fad package by Nicolas Di Cesare.
31// The following banner is included in the original Fad source code:
32//
33// ************ DO NOT REMOVE THIS BANNER ****************
34//
35// Nicolas Di Cesare <Nicolas.Dicesare@ann.jussieu.fr>
36// http://www.ann.jussieu.fr/~dicesare
37//
38// CEMRACS 98 : C++ courses,
39// templates : new C++ techniques
40// for scientific computing
41//
42//********************************************************
43//
44// A short implementation ( not all operators and
45// functions are overloaded ) of 1st order Automatic
46// Differentiation in forward mode (FAD) using
47// EXPRESSION TEMPLATES.
48//
49//********************************************************
50// @HEADER
51
52#ifndef SACADO_FAD_OPS_FWD_HPP
53#define SACADO_FAD_OPS_FWD_HPP
54
55#include <type_traits>
56
57namespace Sacado {
58
59 template <typename T> struct IsSimdType;
60 template <typename T> struct IsFad;
61 template <typename T> struct ValueType;
62
63 namespace Fad {
64
65 template <typename ExprT> class UnaryPlusOp;
66 template <typename ExprT> class UnaryMinusOp;
67 template <typename ExprT> class ExpOp;
68 template <typename ExprT> class LogOp;
69 template <typename ExprT> class Log10Op;
70 template <typename ExprT> class SqrtOp;
71 template <typename ExprT> class CosOp;
72 template <typename ExprT> class SinOp;
73 template <typename ExprT> class TanOp;
74 template <typename ExprT> class ACosOp;
75 template <typename ExprT> class ASinOp;
76 template <typename ExprT> class ATanOp;
77 template <typename ExprT> class CoshOp;
78 template <typename ExprT> class SinhOp;
79 template <typename ExprT> class TanhOp;
80 template <typename ExprT> class ACoshOp;
81 template <typename ExprT> class ASinhOp;
82 template <typename ExprT> class ATanhOp;
83 template <typename ExprT> class AbsOp;
84 template <typename ExprT> class FAbsOp;
85#ifdef HAVE_SACADO_CXX11
86 template <typename ExprT> class CbrtOp;
87#endif
88 template <typename ExprT, bool is_simd = IsSimdType<ExprT>::value>
90
91 template <typename ExprT1, typename ExprT2> class AdditionOp;
92 template <typename ExprT1, typename ExprT2> class SubtractionOp;
93 template <typename ExprT1, typename ExprT2> class Multiplicationp;
94 template <typename ExprT1, typename ExprT2> class DivisionOp;
95 template <typename ExprT1, typename ExprT2> class Atan2Op;
96 template <typename ExprT1, typename ExprT2> class MaxOp;
97 template <typename ExprT1, typename ExprT2> class MinOp;
98
99 namespace PowerImpl {
100 struct Simd {};
101 struct Nested {};
102 struct NestedSimd {};
103 struct Scalar {};
104
105 template <typename T1, typename T2>
106 struct Selector {
107 static constexpr bool is_simd =
109 static constexpr bool is_fad =
112 typedef typename std::conditional<
113 is_simd && is_fad,
115 typename std::conditional<
116 is_simd,
117 Simd,
118 typename std::conditional<
119 is_fad,
120 Nested,
122 >::type
124 };
125 }
126 template <typename ExprT1, typename ExprT2,
127 typename Impl = typename PowerImpl::Selector<ExprT1,ExprT2>::type>
128 class PowerOp;
129
130 } // namespace Fad
131
132} // namespace Sacado
133
134#endif // SACADO_FAD_EXPRESSION_HPP
int value
std::conditional< is_simd &&is_fad, NestedSimd, typenamestd::conditional< is_simd, Simd, typenamestd::conditional< is_fad, Nested, Scalar >::type >::type >::type type
Base template specification for whether a type is a Fad type.
Base template specification for IsSimdType.