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Eigen
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00001 // This file is part of Eigen, a lightweight C++ template library 00002 // for linear algebra. 00003 // 00004 // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr> 00005 // Copyright (C) 2008 Benoit Jacob <jacob.benoit.1@gmail.com> 00006 // 00007 // This Source Code Form is subject to the terms of the Mozilla 00008 // Public License v. 2.0. If a copy of the MPL was not distributed 00009 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. 00010 00011 #ifndef EIGEN_STATIC_ASSERT_H 00012 #define EIGEN_STATIC_ASSERT_H 00013 00014 /* Some notes on Eigen's static assertion mechanism: 00015 * 00016 * - in EIGEN_STATIC_ASSERT(CONDITION,MSG) the parameter CONDITION must be a compile time boolean 00017 * expression, and MSG an enum listed in struct internal::static_assertion<true> 00018 * 00019 * - define EIGEN_NO_STATIC_ASSERT to disable them (and save compilation time) 00020 * in that case, the static assertion is converted to the following runtime assert: 00021 * eigen_assert(CONDITION && "MSG") 00022 * 00023 * - currently EIGEN_STATIC_ASSERT can only be used in function scope 00024 * 00025 */ 00026 00027 #ifndef EIGEN_NO_STATIC_ASSERT 00028 00029 #if defined(__GXX_EXPERIMENTAL_CXX0X__) || (defined(_MSC_VER) && (_MSC_VER >= 1600)) 00030 00031 // if native static_assert is enabled, let's use it 00032 #define EIGEN_STATIC_ASSERT(X,MSG) static_assert(X,#MSG); 00033 00034 #else // not CXX0X 00035 00036 namespace Eigen { 00037 00038 namespace internal { 00039 00040 template<bool condition> 00041 struct static_assertion {}; 00042 00043 template<> 00044 struct static_assertion<true> 00045 { 00046 enum { 00047 YOU_TRIED_CALLING_A_VECTOR_METHOD_ON_A_MATRIX, 00048 YOU_MIXED_VECTORS_OF_DIFFERENT_SIZES, 00049 YOU_MIXED_MATRICES_OF_DIFFERENT_SIZES, 00050 THIS_METHOD_IS_ONLY_FOR_VECTORS_OF_A_SPECIFIC_SIZE, 00051 THIS_METHOD_IS_ONLY_FOR_MATRICES_OF_A_SPECIFIC_SIZE, 00052 THIS_METHOD_IS_ONLY_FOR_OBJECTS_OF_A_SPECIFIC_SIZE, 00053 YOU_MADE_A_PROGRAMMING_MISTAKE, 00054 EIGEN_INTERNAL_ERROR_PLEASE_FILE_A_BUG_REPORT, 00055 EIGEN_INTERNAL_COMPILATION_ERROR_OR_YOU_MADE_A_PROGRAMMING_MISTAKE, 00056 YOU_CALLED_A_FIXED_SIZE_METHOD_ON_A_DYNAMIC_SIZE_MATRIX_OR_VECTOR, 00057 YOU_CALLED_A_DYNAMIC_SIZE_METHOD_ON_A_FIXED_SIZE_MATRIX_OR_VECTOR, 00058 UNALIGNED_LOAD_AND_STORE_OPERATIONS_UNIMPLEMENTED_ON_ALTIVEC, 00059 THIS_FUNCTION_IS_NOT_FOR_INTEGER_NUMERIC_TYPES, 00060 FLOATING_POINT_ARGUMENT_PASSED__INTEGER_WAS_EXPECTED, 00061 NUMERIC_TYPE_MUST_BE_REAL, 00062 COEFFICIENT_WRITE_ACCESS_TO_SELFADJOINT_NOT_SUPPORTED, 00063 WRITING_TO_TRIANGULAR_PART_WITH_UNIT_DIAGONAL_IS_NOT_SUPPORTED, 00064 THIS_METHOD_IS_ONLY_FOR_FIXED_SIZE, 00065 INVALID_MATRIX_PRODUCT, 00066 INVALID_VECTOR_VECTOR_PRODUCT__IF_YOU_WANTED_A_DOT_OR_COEFF_WISE_PRODUCT_YOU_MUST_USE_THE_EXPLICIT_FUNCTIONS, 00067 INVALID_MATRIX_PRODUCT__IF_YOU_WANTED_A_COEFF_WISE_PRODUCT_YOU_MUST_USE_THE_EXPLICIT_FUNCTION, 00068 YOU_MIXED_DIFFERENT_NUMERIC_TYPES__YOU_NEED_TO_USE_THE_CAST_METHOD_OF_MATRIXBASE_TO_CAST_NUMERIC_TYPES_EXPLICITLY, 00069 THIS_METHOD_IS_ONLY_FOR_COLUMN_MAJOR_MATRICES, 00070 THIS_METHOD_IS_ONLY_FOR_ROW_MAJOR_MATRICES, 00071 INVALID_MATRIX_TEMPLATE_PARAMETERS, 00072 INVALID_MATRIXBASE_TEMPLATE_PARAMETERS, 00073 BOTH_MATRICES_MUST_HAVE_THE_SAME_STORAGE_ORDER, 00074 THIS_METHOD_IS_ONLY_FOR_DIAGONAL_MATRIX, 00075 THE_MATRIX_OR_EXPRESSION_THAT_YOU_PASSED_DOES_NOT_HAVE_THE_EXPECTED_TYPE, 00076 THIS_METHOD_IS_ONLY_FOR_EXPRESSIONS_WITH_DIRECT_MEMORY_ACCESS_SUCH_AS_MAP_OR_PLAIN_MATRICES, 00077 YOU_ALREADY_SPECIFIED_THIS_STRIDE, 00078 INVALID_STORAGE_ORDER_FOR_THIS_VECTOR_EXPRESSION, 00079 THE_BRACKET_OPERATOR_IS_ONLY_FOR_VECTORS__USE_THE_PARENTHESIS_OPERATOR_INSTEAD, 00080 PACKET_ACCESS_REQUIRES_TO_HAVE_INNER_STRIDE_FIXED_TO_1, 00081 THIS_METHOD_IS_ONLY_FOR_SPECIFIC_TRANSFORMATIONS, 00082 YOU_CANNOT_MIX_ARRAYS_AND_MATRICES, 00083 YOU_PERFORMED_AN_INVALID_TRANSFORMATION_CONVERSION, 00084 THIS_EXPRESSION_IS_NOT_A_LVALUE__IT_IS_READ_ONLY, 00085 YOU_ARE_TRYING_TO_USE_AN_INDEX_BASED_ACCESSOR_ON_AN_EXPRESSION_THAT_DOES_NOT_SUPPORT_THAT, 00086 THIS_METHOD_IS_ONLY_FOR_1x1_EXPRESSIONS, 00087 THIS_METHOD_IS_ONLY_FOR_EXPRESSIONS_OF_BOOL, 00088 THIS_METHOD_IS_ONLY_FOR_ARRAYS_NOT_MATRICES, 00089 YOU_PASSED_A_ROW_VECTOR_BUT_A_COLUMN_VECTOR_WAS_EXPECTED, 00090 YOU_PASSED_A_COLUMN_VECTOR_BUT_A_ROW_VECTOR_WAS_EXPECTED, 00091 THE_INDEX_TYPE_MUST_BE_A_SIGNED_TYPE, 00092 THE_STORAGE_ORDER_OF_BOTH_SIDES_MUST_MATCH, 00093 OBJECT_ALLOCATED_ON_STACK_IS_TOO_BIG, 00094 IMPLICIT_CONVERSION_TO_SCALAR_IS_FOR_INNER_PRODUCT_ONLY, 00095 STORAGE_LAYOUT_DOES_NOT_MATCH 00096 }; 00097 }; 00098 00099 } // end namespace internal 00100 00101 } // end namespace Eigen 00102 00103 // Specialized implementation for MSVC to avoid "conditional 00104 // expression is constant" warnings. This implementation doesn't 00105 // appear to work under GCC, hence the multiple implementations. 00106 #ifdef _MSC_VER 00107 00108 #define EIGEN_STATIC_ASSERT(CONDITION,MSG) \ 00109 {Eigen::internal::static_assertion<bool(CONDITION)>::MSG;} 00110 00111 #else 00112 00113 #define EIGEN_STATIC_ASSERT(CONDITION,MSG) \ 00114 if (Eigen::internal::static_assertion<bool(CONDITION)>::MSG) {} 00115 00116 #endif 00117 00118 #endif // not CXX0X 00119 00120 #else // EIGEN_NO_STATIC_ASSERT 00121 00122 #define EIGEN_STATIC_ASSERT(CONDITION,MSG) eigen_assert((CONDITION) && #MSG); 00123 00124 #endif // EIGEN_NO_STATIC_ASSERT 00125 00126 00127 // static assertion failing if the type \a TYPE is not a vector type 00128 #define EIGEN_STATIC_ASSERT_VECTOR_ONLY(TYPE) \ 00129 EIGEN_STATIC_ASSERT(TYPE::IsVectorAtCompileTime, \ 00130 YOU_TRIED_CALLING_A_VECTOR_METHOD_ON_A_MATRIX) 00131 00132 // static assertion failing if the type \a TYPE is not fixed-size 00133 #define EIGEN_STATIC_ASSERT_FIXED_SIZE(TYPE) \ 00134 EIGEN_STATIC_ASSERT(TYPE::SizeAtCompileTime!=Eigen::Dynamic, \ 00135 YOU_CALLED_A_FIXED_SIZE_METHOD_ON_A_DYNAMIC_SIZE_MATRIX_OR_VECTOR) 00136 00137 // static assertion failing if the type \a TYPE is not dynamic-size 00138 #define EIGEN_STATIC_ASSERT_DYNAMIC_SIZE(TYPE) \ 00139 EIGEN_STATIC_ASSERT(TYPE::SizeAtCompileTime==Eigen::Dynamic, \ 00140 YOU_CALLED_A_DYNAMIC_SIZE_METHOD_ON_A_FIXED_SIZE_MATRIX_OR_VECTOR) 00141 00142 // static assertion failing if the type \a TYPE is not a vector type of the given size 00143 #define EIGEN_STATIC_ASSERT_VECTOR_SPECIFIC_SIZE(TYPE, SIZE) \ 00144 EIGEN_STATIC_ASSERT(TYPE::IsVectorAtCompileTime && TYPE::SizeAtCompileTime==SIZE, \ 00145 THIS_METHOD_IS_ONLY_FOR_VECTORS_OF_A_SPECIFIC_SIZE) 00146 00147 // static assertion failing if the type \a TYPE is not a vector type of the given size 00148 #define EIGEN_STATIC_ASSERT_MATRIX_SPECIFIC_SIZE(TYPE, ROWS, COLS) \ 00149 EIGEN_STATIC_ASSERT(TYPE::RowsAtCompileTime==ROWS && TYPE::ColsAtCompileTime==COLS, \ 00150 THIS_METHOD_IS_ONLY_FOR_MATRICES_OF_A_SPECIFIC_SIZE) 00151 00152 // static assertion failing if the two vector expression types are not compatible (same fixed-size or dynamic size) 00153 #define EIGEN_STATIC_ASSERT_SAME_VECTOR_SIZE(TYPE0,TYPE1) \ 00154 EIGEN_STATIC_ASSERT( \ 00155 (int(TYPE0::SizeAtCompileTime)==Eigen::Dynamic \ 00156 || int(TYPE1::SizeAtCompileTime)==Eigen::Dynamic \ 00157 || int(TYPE0::SizeAtCompileTime)==int(TYPE1::SizeAtCompileTime)),\ 00158 YOU_MIXED_VECTORS_OF_DIFFERENT_SIZES) 00159 00160 #define EIGEN_PREDICATE_SAME_MATRIX_SIZE(TYPE0,TYPE1) \ 00161 ( \ 00162 (int(TYPE0::SizeAtCompileTime)==0 && int(TYPE1::SizeAtCompileTime)==0) \ 00163 || (\ 00164 (int(TYPE0::RowsAtCompileTime)==Eigen::Dynamic \ 00165 || int(TYPE1::RowsAtCompileTime)==Eigen::Dynamic \ 00166 || int(TYPE0::RowsAtCompileTime)==int(TYPE1::RowsAtCompileTime)) \ 00167 && (int(TYPE0::ColsAtCompileTime)==Eigen::Dynamic \ 00168 || int(TYPE1::ColsAtCompileTime)==Eigen::Dynamic \ 00169 || int(TYPE0::ColsAtCompileTime)==int(TYPE1::ColsAtCompileTime))\ 00170 ) \ 00171 ) 00172 00173 #ifdef EIGEN2_SUPPORT 00174 #define EIGEN_STATIC_ASSERT_NON_INTEGER(TYPE) \ 00175 eigen_assert(!NumTraits<Scalar>::IsInteger); 00176 #else 00177 #define EIGEN_STATIC_ASSERT_NON_INTEGER(TYPE) \ 00178 EIGEN_STATIC_ASSERT(!NumTraits<TYPE>::IsInteger, THIS_FUNCTION_IS_NOT_FOR_INTEGER_NUMERIC_TYPES) 00179 #endif 00180 00181 00182 // static assertion failing if it is guaranteed at compile-time that the two matrix expression types have different sizes 00183 #define EIGEN_STATIC_ASSERT_SAME_MATRIX_SIZE(TYPE0,TYPE1) \ 00184 EIGEN_STATIC_ASSERT( \ 00185 EIGEN_PREDICATE_SAME_MATRIX_SIZE(TYPE0,TYPE1),\ 00186 YOU_MIXED_MATRICES_OF_DIFFERENT_SIZES) 00187 00188 #define EIGEN_STATIC_ASSERT_SIZE_1x1(TYPE) \ 00189 EIGEN_STATIC_ASSERT((TYPE::RowsAtCompileTime == 1 || TYPE::RowsAtCompileTime == Dynamic) && \ 00190 (TYPE::ColsAtCompileTime == 1 || TYPE::ColsAtCompileTime == Dynamic), \ 00191 THIS_METHOD_IS_ONLY_FOR_1x1_EXPRESSIONS) 00192 00193 #define EIGEN_STATIC_ASSERT_LVALUE(Derived) \ 00194 EIGEN_STATIC_ASSERT(internal::is_lvalue<Derived>::value, \ 00195 THIS_EXPRESSION_IS_NOT_A_LVALUE__IT_IS_READ_ONLY) 00196 00197 #define EIGEN_STATIC_ASSERT_ARRAYXPR(Derived) \ 00198 EIGEN_STATIC_ASSERT((internal::is_same<typename internal::traits<Derived>::XprKind, ArrayXpr>::value), \ 00199 THIS_METHOD_IS_ONLY_FOR_ARRAYS_NOT_MATRICES) 00200 00201 #define EIGEN_STATIC_ASSERT_SAME_XPR_KIND(Derived1, Derived2) \ 00202 EIGEN_STATIC_ASSERT((internal::is_same<typename internal::traits<Derived1>::XprKind, \ 00203 typename internal::traits<Derived2>::XprKind \ 00204 >::value), \ 00205 YOU_CANNOT_MIX_ARRAYS_AND_MATRICES) 00206 00207 00208 #endif // EIGEN_STATIC_ASSERT_H