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    // This file is part of Eigen, a lightweight C++ template library
    // for linear algebra.
    //
    // Copyright (C) 2009 Gael Guennebaud <gael.guennebaud@inria.fr>
    //
    
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    // 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/.
    
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    #ifndef EIGEN2SUPPORT_H
    #define EIGEN2SUPPORT_H
    
    #if (!defined(EIGEN2_SUPPORT)) || (!defined(EIGEN_CORE_H))
    #error Eigen2 support must be enabled by defining EIGEN2_SUPPORT before including any Eigen header
    #endif
    
    
    #ifndef EIGEN_NO_EIGEN2_DEPRECATED_WARNING
    
    #if defined(__GNUC__) || defined(__INTEL_COMPILER) || defined(__clang__)
    #warning "Eigen2 support is deprecated in Eigen 3.2.x and it will be removed in Eigen 3.3. (Define EIGEN_NO_EIGEN2_DEPRECATED_WARNING to disable this warning)"
    #else
    #pragma message ("Eigen2 support is deprecated in Eigen 3.2.x and it will be removed in Eigen 3.3. (Define EIGEN_NO_EIGEN2_DEPRECATED_WARNING to disable this warning)")
    #endif
    
    #endif // EIGEN_NO_EIGEN2_DEPRECATED_WARNING
    
    
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    #include "src/Core/util/DisableStupidWarnings.h"
    
    
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    /** \ingroup Support_modules
      * \defgroup Eigen2Support_Module Eigen2 support module
    
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      *
    
      * \warning Eigen2 support is deprecated in Eigen 3.2.x and it will be removed in Eigen 3.3.
      *
      * This module provides a couple of deprecated functions improving the compatibility with Eigen2.
      * 
    
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      * To use it, define EIGEN2_SUPPORT before including any Eigen header
      * \code
      * #define EIGEN2_SUPPORT
      * \endcode
      *
      */
    
    #include "src/Eigen2Support/Macros.h"
    #include "src/Eigen2Support/Memory.h"
    #include "src/Eigen2Support/Meta.h"
    #include "src/Eigen2Support/Lazy.h"
    #include "src/Eigen2Support/Cwise.h"
    #include "src/Eigen2Support/CwiseOperators.h"
    #include "src/Eigen2Support/TriangularSolver.h"
    #include "src/Eigen2Support/Block.h"
    #include "src/Eigen2Support/VectorBlock.h"
    #include "src/Eigen2Support/Minor.h"
    #include "src/Eigen2Support/MathFunctions.h"
    
    
    #include "src/Core/util/ReenableStupidWarnings.h"
    
    // Eigen2 used to include iostream
    #include<iostream>
    
    
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    #define EIGEN_USING_MATRIX_TYPEDEFS_FOR_TYPE_AND_SIZE(TypeSuffix, SizeSuffix) \
    using Eigen::Matrix##SizeSuffix##TypeSuffix; \
    using Eigen::Vector##SizeSuffix##TypeSuffix; \
    using Eigen::RowVector##SizeSuffix##TypeSuffix;
    
    #define EIGEN_USING_MATRIX_TYPEDEFS_FOR_TYPE(TypeSuffix) \
    EIGEN_USING_MATRIX_TYPEDEFS_FOR_TYPE_AND_SIZE(TypeSuffix, 2) \
    EIGEN_USING_MATRIX_TYPEDEFS_FOR_TYPE_AND_SIZE(TypeSuffix, 3) \
    EIGEN_USING_MATRIX_TYPEDEFS_FOR_TYPE_AND_SIZE(TypeSuffix, 4) \
    EIGEN_USING_MATRIX_TYPEDEFS_FOR_TYPE_AND_SIZE(TypeSuffix, X) \
    
    #define EIGEN_USING_MATRIX_TYPEDEFS \
    EIGEN_USING_MATRIX_TYPEDEFS_FOR_TYPE(i) \
    EIGEN_USING_MATRIX_TYPEDEFS_FOR_TYPE(f) \
    EIGEN_USING_MATRIX_TYPEDEFS_FOR_TYPE(d) \
    EIGEN_USING_MATRIX_TYPEDEFS_FOR_TYPE(cf) \
    EIGEN_USING_MATRIX_TYPEDEFS_FOR_TYPE(cd)
    
    
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    #define USING_PART_OF_NAMESPACE_EIGEN \
    EIGEN_USING_MATRIX_TYPEDEFS \
    using Eigen::Matrix; \
    using Eigen::MatrixBase; \
    using Eigen::ei_random; \
    using Eigen::ei_real; \
    using Eigen::ei_imag; \
    using Eigen::ei_conj; \
    using Eigen::ei_abs; \
    using Eigen::ei_abs2; \
    using Eigen::ei_sqrt; \
    using Eigen::ei_exp; \
    using Eigen::ei_log; \
    using Eigen::ei_sin; \
    using Eigen::ei_cos;
    
    #endif // EIGEN2SUPPORT_H