| // This file is part of Eigen, a lightweight C++ template library |
| // for linear algebra. |
| // |
| // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr> |
| // Copyright (C) 2008 Benoit Jacob <jacob.benoit.1@gmail.com> |
| // |
| // This Source Code Form is subject to the terms of the Mozilla |
| // Public License v. 2.0. If a copy of the MPL was not distributed |
| // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| |
| #ifndef EIGEN_STATIC_ASSERT_H |
| #define EIGEN_STATIC_ASSERT_H |
| |
| /* Some notes on Eigen's static assertion mechanism: |
| * |
| * - in EIGEN_STATIC_ASSERT(CONDITION,MSG) the parameter CONDITION must be a compile time boolean |
| * expression, and MSG an enum listed in struct internal::static_assertion<true> |
| * |
| * - define EIGEN_NO_STATIC_ASSERT to disable them (and save compilation time) |
| * in that case, the static assertion is converted to the following runtime assert: |
| * eigen_assert(CONDITION && "MSG") |
| * |
| * - currently EIGEN_STATIC_ASSERT can only be used in function scope |
| * |
| */ |
| |
| #ifndef EIGEN_NO_STATIC_ASSERT |
| |
| #if defined(__GXX_EXPERIMENTAL_CXX0X__) || (defined(_MSC_VER) && (_MSC_VER >= 1600)) |
| |
| // if native static_assert is enabled, let's use it |
| #define EIGEN_STATIC_ASSERT(X,MSG) static_assert(X,#MSG); |
| |
| #else // not CXX0X |
| |
| namespace Eigen { |
| |
| namespace internal { |
| |
| template<bool condition> |
| struct static_assertion {}; |
| |
| template<> |
| struct static_assertion<true> |
| { |
| enum { |
| YOU_TRIED_CALLING_A_VECTOR_METHOD_ON_A_MATRIX, |
| YOU_MIXED_VECTORS_OF_DIFFERENT_SIZES, |
| YOU_MIXED_MATRICES_OF_DIFFERENT_SIZES, |
| THIS_METHOD_IS_ONLY_FOR_VECTORS_OF_A_SPECIFIC_SIZE, |
| THIS_METHOD_IS_ONLY_FOR_MATRICES_OF_A_SPECIFIC_SIZE, |
| THIS_METHOD_IS_ONLY_FOR_OBJECTS_OF_A_SPECIFIC_SIZE, |
| YOU_MADE_A_PROGRAMMING_MISTAKE, |
| EIGEN_INTERNAL_ERROR_PLEASE_FILE_A_BUG_REPORT, |
| EIGEN_INTERNAL_COMPILATION_ERROR_OR_YOU_MADE_A_PROGRAMMING_MISTAKE, |
| YOU_CALLED_A_FIXED_SIZE_METHOD_ON_A_DYNAMIC_SIZE_MATRIX_OR_VECTOR, |
| YOU_CALLED_A_DYNAMIC_SIZE_METHOD_ON_A_FIXED_SIZE_MATRIX_OR_VECTOR, |
| UNALIGNED_LOAD_AND_STORE_OPERATIONS_UNIMPLEMENTED_ON_ALTIVEC, |
| THIS_FUNCTION_IS_NOT_FOR_INTEGER_NUMERIC_TYPES, |
| FLOATING_POINT_ARGUMENT_PASSED__INTEGER_WAS_EXPECTED, |
| NUMERIC_TYPE_MUST_BE_REAL, |
| COEFFICIENT_WRITE_ACCESS_TO_SELFADJOINT_NOT_SUPPORTED, |
| WRITING_TO_TRIANGULAR_PART_WITH_UNIT_DIAGONAL_IS_NOT_SUPPORTED, |
| THIS_METHOD_IS_ONLY_FOR_FIXED_SIZE, |
| INVALID_MATRIX_PRODUCT, |
| INVALID_VECTOR_VECTOR_PRODUCT__IF_YOU_WANTED_A_DOT_OR_COEFF_WISE_PRODUCT_YOU_MUST_USE_THE_EXPLICIT_FUNCTIONS, |
| INVALID_MATRIX_PRODUCT__IF_YOU_WANTED_A_COEFF_WISE_PRODUCT_YOU_MUST_USE_THE_EXPLICIT_FUNCTION, |
| YOU_MIXED_DIFFERENT_NUMERIC_TYPES__YOU_NEED_TO_USE_THE_CAST_METHOD_OF_MATRIXBASE_TO_CAST_NUMERIC_TYPES_EXPLICITLY, |
| THIS_METHOD_IS_ONLY_FOR_COLUMN_MAJOR_MATRICES, |
| THIS_METHOD_IS_ONLY_FOR_ROW_MAJOR_MATRICES, |
| INVALID_MATRIX_TEMPLATE_PARAMETERS, |
| INVALID_MATRIXBASE_TEMPLATE_PARAMETERS, |
| BOTH_MATRICES_MUST_HAVE_THE_SAME_STORAGE_ORDER, |
| THIS_METHOD_IS_ONLY_FOR_DIAGONAL_MATRIX, |
| THE_MATRIX_OR_EXPRESSION_THAT_YOU_PASSED_DOES_NOT_HAVE_THE_EXPECTED_TYPE, |
| THIS_METHOD_IS_ONLY_FOR_EXPRESSIONS_WITH_DIRECT_MEMORY_ACCESS_SUCH_AS_MAP_OR_PLAIN_MATRICES, |
| YOU_ALREADY_SPECIFIED_THIS_STRIDE, |
| INVALID_STORAGE_ORDER_FOR_THIS_VECTOR_EXPRESSION, |
| THE_BRACKET_OPERATOR_IS_ONLY_FOR_VECTORS__USE_THE_PARENTHESIS_OPERATOR_INSTEAD, |
| PACKET_ACCESS_REQUIRES_TO_HAVE_INNER_STRIDE_FIXED_TO_1, |
| THIS_METHOD_IS_ONLY_FOR_SPECIFIC_TRANSFORMATIONS, |
| YOU_CANNOT_MIX_ARRAYS_AND_MATRICES, |
| YOU_PERFORMED_AN_INVALID_TRANSFORMATION_CONVERSION, |
| THIS_EXPRESSION_IS_NOT_A_LVALUE__IT_IS_READ_ONLY, |
| YOU_ARE_TRYING_TO_USE_AN_INDEX_BASED_ACCESSOR_ON_AN_EXPRESSION_THAT_DOES_NOT_SUPPORT_THAT, |
| THIS_METHOD_IS_ONLY_FOR_1x1_EXPRESSIONS, |
| THIS_METHOD_IS_ONLY_FOR_EXPRESSIONS_OF_BOOL, |
| THIS_METHOD_IS_ONLY_FOR_ARRAYS_NOT_MATRICES, |
| YOU_PASSED_A_ROW_VECTOR_BUT_A_COLUMN_VECTOR_WAS_EXPECTED, |
| YOU_PASSED_A_COLUMN_VECTOR_BUT_A_ROW_VECTOR_WAS_EXPECTED, |
| THE_INDEX_TYPE_MUST_BE_A_SIGNED_TYPE, |
| THE_STORAGE_ORDER_OF_BOTH_SIDES_MUST_MATCH |
| }; |
| }; |
| |
| } // end namespace internal |
| |
| } // end namespace Eigen |
| |
| // Specialized implementation for MSVC to avoid "conditional |
| // expression is constant" warnings. This implementation doesn't |
| // appear to work under GCC, hence the multiple implementations. |
| #ifdef _MSC_VER |
| |
| #define EIGEN_STATIC_ASSERT(CONDITION,MSG) \ |
| {Eigen::internal::static_assertion<bool(CONDITION)>::MSG;} |
| |
| #else |
| |
| #define EIGEN_STATIC_ASSERT(CONDITION,MSG) \ |
| if (Eigen::internal::static_assertion<bool(CONDITION)>::MSG) {} |
| |
| #endif |
| |
| #endif // not CXX0X |
| |
| #else // EIGEN_NO_STATIC_ASSERT |
| |
| #define EIGEN_STATIC_ASSERT(CONDITION,MSG) eigen_assert((CONDITION) && #MSG); |
| |
| #endif // EIGEN_NO_STATIC_ASSERT |
| |
| |
| // static assertion failing if the type \a TYPE is not a vector type |
| #define EIGEN_STATIC_ASSERT_VECTOR_ONLY(TYPE) \ |
| EIGEN_STATIC_ASSERT(TYPE::IsVectorAtCompileTime, \ |
| YOU_TRIED_CALLING_A_VECTOR_METHOD_ON_A_MATRIX) |
| |
| // static assertion failing if the type \a TYPE is not fixed-size |
| #define EIGEN_STATIC_ASSERT_FIXED_SIZE(TYPE) \ |
| EIGEN_STATIC_ASSERT(TYPE::SizeAtCompileTime!=Eigen::Dynamic, \ |
| YOU_CALLED_A_FIXED_SIZE_METHOD_ON_A_DYNAMIC_SIZE_MATRIX_OR_VECTOR) |
| |
| // static assertion failing if the type \a TYPE is not dynamic-size |
| #define EIGEN_STATIC_ASSERT_DYNAMIC_SIZE(TYPE) \ |
| EIGEN_STATIC_ASSERT(TYPE::SizeAtCompileTime==Eigen::Dynamic, \ |
| YOU_CALLED_A_DYNAMIC_SIZE_METHOD_ON_A_FIXED_SIZE_MATRIX_OR_VECTOR) |
| |
| // static assertion failing if the type \a TYPE is not a vector type of the given size |
| #define EIGEN_STATIC_ASSERT_VECTOR_SPECIFIC_SIZE(TYPE, SIZE) \ |
| EIGEN_STATIC_ASSERT(TYPE::IsVectorAtCompileTime && TYPE::SizeAtCompileTime==SIZE, \ |
| THIS_METHOD_IS_ONLY_FOR_VECTORS_OF_A_SPECIFIC_SIZE) |
| |
| // static assertion failing if the type \a TYPE is not a vector type of the given size |
| #define EIGEN_STATIC_ASSERT_MATRIX_SPECIFIC_SIZE(TYPE, ROWS, COLS) \ |
| EIGEN_STATIC_ASSERT(TYPE::RowsAtCompileTime==ROWS && TYPE::ColsAtCompileTime==COLS, \ |
| THIS_METHOD_IS_ONLY_FOR_MATRICES_OF_A_SPECIFIC_SIZE) |
| |
| // static assertion failing if the two vector expression types are not compatible (same fixed-size or dynamic size) |
| #define EIGEN_STATIC_ASSERT_SAME_VECTOR_SIZE(TYPE0,TYPE1) \ |
| EIGEN_STATIC_ASSERT( \ |
| (int(TYPE0::SizeAtCompileTime)==Eigen::Dynamic \ |
| || int(TYPE1::SizeAtCompileTime)==Eigen::Dynamic \ |
| || int(TYPE0::SizeAtCompileTime)==int(TYPE1::SizeAtCompileTime)),\ |
| YOU_MIXED_VECTORS_OF_DIFFERENT_SIZES) |
| |
| #define EIGEN_PREDICATE_SAME_MATRIX_SIZE(TYPE0,TYPE1) \ |
| ( \ |
| (int(TYPE0::SizeAtCompileTime)==0 && int(TYPE1::SizeAtCompileTime)==0) \ |
| || (\ |
| (int(TYPE0::RowsAtCompileTime)==Eigen::Dynamic \ |
| || int(TYPE1::RowsAtCompileTime)==Eigen::Dynamic \ |
| || int(TYPE0::RowsAtCompileTime)==int(TYPE1::RowsAtCompileTime)) \ |
| && (int(TYPE0::ColsAtCompileTime)==Eigen::Dynamic \ |
| || int(TYPE1::ColsAtCompileTime)==Eigen::Dynamic \ |
| || int(TYPE0::ColsAtCompileTime)==int(TYPE1::ColsAtCompileTime))\ |
| ) \ |
| ) |
| |
| #ifdef EIGEN2_SUPPORT |
| #define EIGEN_STATIC_ASSERT_NON_INTEGER(TYPE) \ |
| eigen_assert(!NumTraits<Scalar>::IsInteger); |
| #else |
| #define EIGEN_STATIC_ASSERT_NON_INTEGER(TYPE) \ |
| EIGEN_STATIC_ASSERT(!NumTraits<TYPE>::IsInteger, THIS_FUNCTION_IS_NOT_FOR_INTEGER_NUMERIC_TYPES) |
| #endif |
| |
| |
| // static assertion failing if it is guaranteed at compile-time that the two matrix expression types have different sizes |
| #define EIGEN_STATIC_ASSERT_SAME_MATRIX_SIZE(TYPE0,TYPE1) \ |
| EIGEN_STATIC_ASSERT( \ |
| EIGEN_PREDICATE_SAME_MATRIX_SIZE(TYPE0,TYPE1),\ |
| YOU_MIXED_MATRICES_OF_DIFFERENT_SIZES) |
| |
| #define EIGEN_STATIC_ASSERT_SIZE_1x1(TYPE) \ |
| EIGEN_STATIC_ASSERT((TYPE::RowsAtCompileTime == 1 || TYPE::RowsAtCompileTime == Dynamic) && \ |
| (TYPE::ColsAtCompileTime == 1 || TYPE::ColsAtCompileTime == Dynamic), \ |
| THIS_METHOD_IS_ONLY_FOR_1x1_EXPRESSIONS) |
| |
| #define EIGEN_STATIC_ASSERT_LVALUE(Derived) \ |
| EIGEN_STATIC_ASSERT(internal::is_lvalue<Derived>::value, \ |
| THIS_EXPRESSION_IS_NOT_A_LVALUE__IT_IS_READ_ONLY) |
| |
| #define EIGEN_STATIC_ASSERT_ARRAYXPR(Derived) \ |
| EIGEN_STATIC_ASSERT((internal::is_same<typename internal::traits<Derived>::XprKind, ArrayXpr>::value), \ |
| THIS_METHOD_IS_ONLY_FOR_ARRAYS_NOT_MATRICES) |
| |
| #define EIGEN_STATIC_ASSERT_SAME_XPR_KIND(Derived1, Derived2) \ |
| EIGEN_STATIC_ASSERT((internal::is_same<typename internal::traits<Derived1>::XprKind, \ |
| typename internal::traits<Derived2>::XprKind \ |
| >::value), \ |
| YOU_CANNOT_MIX_ARRAYS_AND_MATRICES) |
| |
| |
| #endif // EIGEN_STATIC_ASSERT_H |