numeric_type_check.hpp
Go to the documentation of this file.00001 // Emacs Mode Line: -*- Mode:c++;-*- 00002 // ------------------------------------------------------------- 00003 /* 00004 * Copyright (c) 2013 Battelle Memorial Institute 00005 * Licensed under modified BSD License. A copy of this license can be found 00006 * in the LICENSE file in the top level directory of this distribution. 00007 */ 00008 // ------------------------------------------------------------- 00009 // ------------------------------------------------------------- 00010 /** 00011 * @file numeric_type_check.hpp 00012 * @author William A. Perkins 00013 * @date 2015-01-22 15:06:17 d3g096 00014 * 00015 * @brief 00016 * 00017 * 00018 */ 00019 // ------------------------------------------------------------- 00020 // ------------------------------------------------------------- 00021 // Created January 20, 2015 by William A. Perkins 00022 // Last Change: 2013-05-03 12:23:12 d3g096 00023 // ------------------------------------------------------------- 00024 00025 00026 #ifndef _numeric_type_check_hpp_ 00027 #define _numeric_type_check_hpp_ 00028 00029 #include <boost/mpl/vector.hpp> 00030 #include <boost/mpl/find.hpp> 00031 #include <boost/mpl/if.hpp> 00032 #include <boost/type_traits/is_same.hpp> 00033 00034 #include <gridpack/utilities/complex.hpp> 00035 00036 namespace gridpack { 00037 namespace math { 00038 00039 /// This is used to make sure the numeric type is supported 00040 /** 00041 * GridPACK only supports a limited number of element types for 00042 * matrices and vectors, specifically @c double and @c 00043 * "std::complex<double>. This will cause a compilation failure if the 00044 * type is not supported. 00045 * 00046 */ 00047 template <typename T> 00048 struct TypeCheck { 00049 private: 00050 typedef boost::mpl::vector<RealType, ComplexType> Allowable; 00051 typedef boost::mpl::end<Allowable>::type NotFound; 00052 typedef typename boost::mpl::find<Allowable, T>::type Found; 00053 public: 00054 typedef boost::mpl::not_< 00055 boost::is_same<Found, NotFound> 00056 > OK; 00057 static const bool check = OK::value; 00058 static const bool isComplex = boost::is_same<T, ComplexType>::value; 00059 template <typename Other> 00060 struct isSame : boost::is_same<T, Other>::type 00061 {}; 00062 }; 00063 00064 } // namespace math 00065 } // namespace gridpack 00066 00067 00068 00069 00070 #endif
