Intrepid
/usr/src/RPM/BUILD/trilinos-11.12.1/packages/intrepid/src/Shared/MiniTensor/Intrepid_MiniTensor_Utilities.h
00001 // @HEADER
00002 // ************************************************************************
00003 //
00004 //                           Intrepid Package
00005 //                 Copyright (2007) Sandia Corporation
00006 //
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 //
00010 // Redistribution and use in source and binary forms, with or without
00011 // modification, are permitted provided that the following conditions are
00012 // met:
00013 //
00014 // 1. Redistributions of source code must retain the above copyright
00015 // notice, this list of conditions and the following disclaimer.
00016 //
00017 // 2. Redistributions in binary form must reproduce the above copyright
00018 // notice, this list of conditions and the following disclaimer in the
00019 // documentation and/or other materials provided with the distribution.
00020 //
00021 // 3. Neither the name of the Corporation nor the names of the
00022 // contributors may be used to endorse or promote products derived from
00023 // this software without specific prior written permission.
00024 //
00025 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
00026 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00027 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
00028 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
00029 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00030 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00031 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00032 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00033 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00034 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00035 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00036 //
00037 // Questions: Alejandro Mota (amota@sandia.gov)
00038 //
00039 // ************************************************************************
00040 // @HEADER
00041 
00042 #if !defined(Intrepid_MiniTensor_Utilities_h)
00043 #define Intrepid_MiniTensor_Utilities_h
00044 
00045 #include "Sacado.hpp"
00046 
00047 namespace Intrepid {
00048 
00052 template<typename T>
00053 int
00054 sgn(T const & s);
00055 
00059 template<typename T>
00060 T
00061 copysign(T const & a, T const & b);
00062 
00069 template<typename T>
00070 typename Sacado::ScalarType<T>::type
00071 not_a_number();
00072 
00079 template<typename T>
00080 typename Sacado::ScalarType<T>::type
00081 machine_epsilon();
00082 
00086 template<typename T>
00087 typename Sacado::ScalarType<T>::type
00088 tau();
00089 
00094 template<typename T>
00095 typename Sacado::ScalarType<T>::type
00096 random();
00097 
00101 template<typename T>
00102 typename Sacado::ScalarType<T>::type
00103 random_uniform();
00104 
00108 template<typename T>
00109 typename Sacado::ScalarType<T>::type
00110 random_normal();
00111 
00115 template<typename T>
00116 T
00117 integer_power(T const & X, Index const exponent);
00118 
00123 template<typename T>
00124 struct Duet
00125 {
00126   T first;
00127   T second;
00128 };
00129 
00134 template<typename T>
00135 struct Triplet
00136 {
00137   T first;
00138   T second;
00139   T third;
00140 };
00141 
00145 template<typename T>
00146 inline
00147 Duet<T>
00148 make_duet(T const & a, T const & b);
00149 
00153 template<typename T>
00154 inline
00155 Triplet<T>
00156 make_triplet(T const & a, T const & b, T const & c);
00157 
00162 template<typename T>
00163 inline
00164 Duet<T>
00165 tie(T & a, T& b);
00166 
00171 template<typename T>
00172 inline
00173 Triplet<T>
00174 tie(T & a, T & b, T & c);
00175 
00176 } // namespace Intrepid
00177 
00178 #include "Intrepid_MiniTensor_Utilities.i.h"
00179 
00180 #endif // Intrepid_MiniTensor_Utilities_h