// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2008 Gael Guennebaud <g.gael@free.fr>
// Copyright (C) 2007-2010 Benoit Jacob <jacob.benoit.1@gmail.com>
//
// Eigen is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 3 of the License, or (at your option) any later version.
//
// Alternatively, you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License and a copy of the GNU General Public License along with
// Eigen. If not, see <http://www.gnu.org/licenses/>.

#ifndef EIGEN_CORE_H
#define EIGEN_CORE_H

// first thing Eigen does: prevent MSVC from committing suicide
#include "src/Core/util/DisableMSVCWarnings.h"

// then include this file where all our macros are defined. It's really important to do it first because
// it's where we do all the alignment settings (platform detection and honoring the user's will if he
// defined e.g. EIGEN_DONT_ALIGN) so it needs to be done before we do anything with vectorization.
#include "src/Core/util/Macros.h"

// if alignment is disabled, then disable vectorization. Note: EIGEN_ALIGN is the proper check, it takes into
// account both the user's will (EIGEN_DONT_ALIGN) and our own platform checks
#if !EIGEN_ALIGN
  #ifndef EIGEN_DONT_VECTORIZE
    #define EIGEN_DONT_VECTORIZE
  #endif
#endif

// disable vectorization on LLVM: it's not yet ready for that.
#ifdef __clang__
  #ifndef EIGEN_DONT_VECTORIZE
    #define EIGEN_DONT_VECTORIZE
  #endif
#endif

#ifdef _MSC_VER
  #include <malloc.h> // for _aligned_malloc -- need it regardless of whether vectorization is enabled
  #if (_MSC_VER >= 1500) // 2008 or later
    // Remember that usage of defined() in a #define is undefined by the standard.
    // a user reported that in 64-bit mode, MSVC doesn't care to define _M_IX86_FP.
    #if (defined(_M_IX86_FP) && (_M_IX86_FP >= 2)) || defined(_M_X64)
      #define EIGEN_SSE2_ON_MSVC_2008_OR_LATER
    #endif
  #endif
#endif

// Remember that usage of defined() in a #define is undefined by the standard
#if (defined __SSE2__) && ( (!defined __GNUC__) || EIGEN_GNUC_AT_LEAST(4,2) )
  #define EIGEN_SSE2_BUT_NOT_OLD_GCC
#endif

#ifndef EIGEN_DONT_VECTORIZE

  #if defined (EIGEN_SSE2_BUT_NOT_OLD_GCC) || defined(EIGEN_SSE2_ON_MSVC_2008_OR_LATER)

    // Defines symbols for compile-time detection of which instructions are
    // used.
    // EIGEN_VECTORIZE_YY is defined if and only if the instruction set YY is used
    #define EIGEN_VECTORIZE
    #define EIGEN_VECTORIZE_SSE
    #define EIGEN_VECTORIZE_SSE2

    // Detect sse3/ssse3/sse4:
    // gcc and icc defines __SSE3__, ..,
    // there is no way to know about this on msvc. You can define EIGEN_VECTORIZE_SSE* if you
    // want to force the use of those instructions with msvc.
    #ifdef __SSE3__
      #define EIGEN_VECTORIZE_SSE3
    #endif
    #ifdef __SSSE3__
      #define EIGEN_VECTORIZE_SSSE3
    #endif
    #ifdef __SSE4_1__
      #define EIGEN_VECTORIZE_SSE4_1
    #endif
    #ifdef __SSE4_2__
      #define EIGEN_VECTORIZE_SSE4_2
    #endif

    // include files

    #include <emmintrin.h>
    #include <xmmintrin.h>
    #ifdef  EIGEN_VECTORIZE_SSE3
      #include <pmmintrin.h>
    #endif
    #ifdef EIGEN_VECTORIZE_SSSE3
      #include <tmmintrin.h>
    #endif
    #ifdef EIGEN_VECTORIZE_SSE4_1
      #include <smmintrin.h>
    #endif
    #ifdef EIGEN_VECTORIZE_SSE4_2
      #include <nmmintrin.h>
    #endif
  #elif defined __ALTIVEC__
    #define EIGEN_VECTORIZE
    #define EIGEN_VECTORIZE_ALTIVEC
    #include <altivec.h>
    // We need to #undef all these ugly tokens defined in <altivec.h>
    // => use __vector instead of vector
    #undef bool
    #undef vector
    #undef pixel
  #elif defined  __ARM_NEON__
    #define EIGEN_VECTORIZE
    #define EIGEN_VECTORIZE_NEON
    #include <arm_neon.h>
  #endif
#endif

#ifdef _OPENMP
  #define EIGEN_HAS_OPENMP
#endif

#ifdef EIGEN_HAS_OPENMP
#include <omp.h>
#endif

#include <cerrno>
#include <cstdlib>
#include <cmath>
#include <complex>
#include <cassert>
#include <functional>
#include <iosfwd>
#include <cstring>
#include <string>
#include <limits>
// for min/max:
#include <algorithm>

// for outputting debug info
#ifdef EIGEN_DEBUG_ASSIGN
#include<iostream>
#endif

#if (defined(_CPPUNWIND) || defined(__EXCEPTIONS)) && !defined(EIGEN_NO_EXCEPTIONS)
  #define EIGEN_EXCEPTIONS
#endif

#ifdef EIGEN_EXCEPTIONS
  #include <new>
#endif

// this needs to be done after all possible windows C header includes and before any Eigen source includes
// (system C++ includes are supposed to be able to deal with this already):
// windows.h defines min and max macros which would make Eigen fail to compile.
#if defined(min) || defined(max)
#error The preprocessor symbols 'min' or 'max' are defined. If you are compiling on Windows, do #define NOMINMAX to prevent windows.h from defining these symbols.
#endif

// defined in bits/termios.h
#undef B0

// defined in some GNU standard header
#undef minor

namespace Eigen {

inline static const char *SimdInstructionSetsInUse(void) {
#if defined(EIGEN_VECTORIZE_SSE4_2)
  return "SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2";
#elif defined(EIGEN_VECTORIZE_SSE4_1)
  return "SSE, SSE2, SSE3, SSSE3, SSE4.1";
#elif defined(EIGEN_VECTORIZE_SSSE3)
  return "SSE, SSE2, SSE3, SSSE3";
#elif defined(EIGEN_VECTORIZE_SSE3)
  return "SSE, SSE2, SSE3";
#elif defined(EIGEN_VECTORIZE_SSE2)
  return "SSE, SSE2";
#elif defined(EIGEN_VECTORIZE_ALTIVEC)
  return "AltiVec";
#elif defined(EIGEN_VECTORIZE_NEON)
  return "ARM NEON";
#else
  return "None";
#endif
}

// we use size_t frequently and we'll never remember to prepend it with std:: everytime just to
// ensure QNX/QCC support
using std::size_t;

/** \defgroup Core_Module Core module
  * This is the main module of Eigen providing dense matrix and vector support
  * (both fixed and dynamic size) with all the features corresponding to a BLAS library
  * and much more...
  *
  * \code
  * #include <Eigen/Core>
  * \endcode
  */

#include "src/Core/util/Constants.h"
#include "src/Core/util/ForwardDeclarations.h"
#include "src/Core/util/Meta.h"
#include "src/Core/util/XprHelper.h"
#include "src/Core/util/StaticAssert.h"
#include "src/Core/util/Memory.h"

#include "src/Core/NumTraits.h"
#include "src/Core/MathFunctions.h"
#include "src/Core/GenericPacketMath.h"

#if defined EIGEN_VECTORIZE_SSE
  #include "src/Core/arch/SSE/PacketMath.h"
  #include "src/Core/arch/SSE/MathFunctions.h"
#elif defined EIGEN_VECTORIZE_ALTIVEC
  #include "src/Core/arch/AltiVec/PacketMath.h"
#elif defined EIGEN_VECTORIZE_NEON
  #include "src/Core/arch/NEON/PacketMath.h"
#endif

#include "src/Core/arch/Default/Settings.h"

#include "src/Core/Functors.h"
#include "src/Core/DenseBase.h"
#include "src/Core/DenseDirectAccessBase.h"
#include "src/Core/MatrixBase.h"
#include "src/Core/EigenBase.h"
#include "src/Core/Coeffs.h"

#ifndef EIGEN_PARSED_BY_DOXYGEN // work around Doxygen bug triggered by Assign.h r814874
                                // at least confirmed with Doxygen 1.5.5 and 1.5.6
  #include "src/Core/Assign.h"
#endif

#include "src/Core/util/BlasUtil.h"
#include "src/Core/MatrixStorage.h"
#include "src/Core/NestByValue.h"
#include "src/Core/ForceAlignedAccess.h"
#include "src/Core/ReturnByValue.h"
#include "src/Core/NoAlias.h"
#include "src/Core/DenseStorageBase.h"
#include "src/Core/Matrix.h"
#include "src/Core/SelfCwiseBinaryOp.h"
#include "src/Core/CwiseBinaryOp.h"
#include "src/Core/CwiseUnaryOp.h"
#include "src/Core/CwiseNullaryOp.h"
#include "src/Core/CwiseUnaryView.h"
#include "src/Core/Dot.h"
#include "src/Core/StableNorm.h"
#include "src/Core/MapBase.h"
#include "src/Core/Stride.h"
#include "src/Core/Map.h"
#include "src/Core/Block.h"
#include "src/Core/VectorBlock.h"
#include "src/Core/Minor.h"
#include "src/Core/Transpose.h"
#include "src/Core/DiagonalMatrix.h"
#include "src/Core/Diagonal.h"
#include "src/Core/DiagonalProduct.h"
#include "src/Core/PermutationMatrix.h"
#include "src/Core/Redux.h"
#include "src/Core/Visitor.h"
#include "src/Core/Fuzzy.h"
#include "src/Core/IO.h"
#include "src/Core/Swap.h"
#include "src/Core/CommaInitializer.h"
#include "src/Core/Flagged.h"
#include "src/Core/ProductBase.h"
#include "src/Core/Product.h"
#include "src/Core/TriangularMatrix.h"
#include "src/Core/SelfAdjointView.h"
#include "src/Core/SolveTriangular.h"
#include "src/Core/products/Parallelizer.h"
#include "src/Core/products/CoeffBasedProduct.h"
#include "src/Core/products/GeneralBlockPanelKernel.h"
#include "src/Core/products/GeneralMatrixVector.h"
#include "src/Core/products/GeneralMatrixMatrix.h"
#include "src/Core/products/SelfadjointMatrixVector.h"
#include "src/Core/products/SelfadjointMatrixMatrix.h"
#include "src/Core/products/SelfadjointProduct.h"
#include "src/Core/products/SelfadjointRank2Update.h"
#include "src/Core/products/TriangularMatrixVector.h"
#include "src/Core/products/TriangularMatrixMatrix.h"
#include "src/Core/products/TriangularSolverMatrix.h"
#include "src/Core/BandMatrix.h"

#include "src/Array/Functors.h"
#include "src/Array/BooleanRedux.h"
#include "src/Array/Select.h"
#include "src/Array/VectorwiseOp.h"
#include "src/Array/Random.h"
#include "src/Array/Norms.h"
#include "src/Array/Replicate.h"
#include "src/Array/Reverse.h"
#include "src/Array/ArrayBase.h"
#include "src/Array/ArrayWrapper.h"
#include "src/Array/Array.h"

} // namespace Eigen

#include "src/Array/GlobalFunctions.h"

#include "src/Core/util/EnableMSVCWarnings.h"

#ifdef EIGEN2_SUPPORT
#include "Eigen2Support"
#endif

#endif // EIGEN_CORE_H