// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2008-2015 Gael Guennebaud <gael.guennebaud@inria.fr>
// Copyright (C) 2006-2008 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_MACROS_H
#define EIGEN_MACROS_H
// IWYU pragma: private
#include "../InternalHeaderCheck.h"

//------------------------------------------------------------------------------------------
// Eigen version and basic defaults
//------------------------------------------------------------------------------------------

#define EIGEN_VERSION_AT_LEAST(x, y, z) \
  (EIGEN_MAJOR_VERSION > x ||           \
   (EIGEN_MAJOR_VERSION >= x && (EIGEN_MINOR_VERSION > y || (EIGEN_MINOR_VERSION >= y && EIGEN_PATCH_VERSION >= z))))

#ifdef EIGEN_DEFAULT_TO_ROW_MAJOR
#define EIGEN_DEFAULT_MATRIX_STORAGE_ORDER_OPTION Eigen::RowMajor
#else
#define EIGEN_DEFAULT_MATRIX_STORAGE_ORDER_OPTION Eigen::ColMajor
#endif

#ifndef EIGEN_DEFAULT_DENSE_INDEX_TYPE
#define EIGEN_DEFAULT_DENSE_INDEX_TYPE std::ptrdiff_t
#endif

// Upperbound on the C++ version to use.
// Expected values are 03, 11, 14, 17, etc.
// By default, let's use an arbitrarily large C++ version.
#ifndef EIGEN_MAX_CPP_VER
#define EIGEN_MAX_CPP_VER 99
#endif

/** Allows to disable some optimizations which might affect the accuracy of the result.
 * Such optimization are enabled by default, and set EIGEN_FAST_MATH to 0 to disable them.
 * They currently include:
 *   - single precision ArrayBase::sin() and ArrayBase::cos() for SSE and AVX vectorization.
 */
#ifndef EIGEN_FAST_MATH
#define EIGEN_FAST_MATH 1
#endif

#ifndef EIGEN_STACK_ALLOCATION_LIMIT
// 131072 == 128 KB
#define EIGEN_STACK_ALLOCATION_LIMIT 131072
#endif

//------------------------------------------------------------------------------------------
// Compiler identification, EIGEN_COMP_*
//------------------------------------------------------------------------------------------

/// \internal EIGEN_COMP_GNUC set to version (e.g., 951 for GCC 9.5.1) for all compilers compatible with GCC
#ifdef __GNUC__
#define EIGEN_COMP_GNUC (__GNUC__ * 100 + __GNUC_MINOR__ * 10 + __GNUC_PATCHLEVEL__)
#else
#define EIGEN_COMP_GNUC 0
#endif

/// \internal EIGEN_COMP_CLANG set to version (e.g., 372 for clang 3.7.2) if the compiler is clang
#if defined(__clang__)
#define EIGEN_COMP_CLANG (__clang_major__ * 100 + __clang_minor__ * 10 + __clang_patchlevel__)
#else
#define EIGEN_COMP_CLANG 0
#endif

/// \internal EIGEN_COMP_CLANGAPPLE set to the version number (e.g. 9000000 for AppleClang 9.0) if the compiler is
/// AppleClang
#if defined(__clang__) && defined(__apple_build_version__)
#define EIGEN_COMP_CLANGAPPLE __apple_build_version__
#else
#define EIGEN_COMP_CLANGAPPLE 0
#endif

/// \internal EIGEN_COMP_CASTXML set to 1 if being preprocessed by CastXML
#if defined(__castxml__)
#define EIGEN_COMP_CASTXML 1
#else
#define EIGEN_COMP_CASTXML 0
#endif

/// \internal EIGEN_COMP_LLVM set to 1 if the compiler backend is llvm
#if defined(__llvm__)
#define EIGEN_COMP_LLVM 1
#else
#define EIGEN_COMP_LLVM 0
#endif

/// \internal EIGEN_COMP_ICC set to __INTEL_COMPILER if the compiler is Intel icc compiler, 0 otherwise
#if defined(__INTEL_COMPILER)
#define EIGEN_COMP_ICC __INTEL_COMPILER
#else
#define EIGEN_COMP_ICC 0
#endif

/// \internal EIGEN_COMP_CLANGICC set to __INTEL_CLANG_COMPILER if the compiler is Intel icx compiler, 0 otherwise
#if defined(__INTEL_CLANG_COMPILER)
#define EIGEN_COMP_CLANGICC __INTEL_CLANG_COMPILER
#else
#define EIGEN_COMP_CLANGICC 0
#endif

/// \internal EIGEN_COMP_MINGW set to 1 if the compiler is mingw
#if defined(__MINGW32__)
#define EIGEN_COMP_MINGW 1
#else
#define EIGEN_COMP_MINGW 0
#endif

/// \internal EIGEN_COMP_SUNCC set to 1 if the compiler is Solaris Studio
#if defined(__SUNPRO_CC)
#define EIGEN_COMP_SUNCC 1
#else
#define EIGEN_COMP_SUNCC 0
#endif

/// \internal EIGEN_COMP_MSVC set to _MSC_VER if the compiler is Microsoft Visual C++, 0 otherwise.
#if defined(_MSC_VER)
#define EIGEN_COMP_MSVC _MSC_VER
#else
#define EIGEN_COMP_MSVC 0
#endif

#if defined(__NVCC__)
#if defined(__CUDACC_VER_MAJOR__) && (__CUDACC_VER_MAJOR__ >= 9)
#define EIGEN_COMP_NVCC ((__CUDACC_VER_MAJOR__ * 10000) + (__CUDACC_VER_MINOR__ * 100))
#elif defined(__CUDACC_VER__)
#define EIGEN_COMP_NVCC __CUDACC_VER__
#else
#error "NVCC did not define compiler version."
#endif
#else
#define EIGEN_COMP_NVCC 0
#endif

// For the record, here is a table summarizing the possible values for EIGEN_COMP_MSVC:
//  name        ver   MSC_VER
//  2015        14      1900
//  "15"        15      1900
//  2017-14.1   15.0    1910
//  2017-14.11  15.3    1911
//  2017-14.12  15.5    1912
//  2017-14.13  15.6    1913
//  2017-14.14  15.7    1914
//  2017        15.8    1915
//  2017        15.9    1916
//  2019 RTW    16.0    1920

/// \internal EIGEN_COMP_MSVC_LANG set to _MSVC_LANG if the compiler is Microsoft Visual C++, 0 otherwise.
#if defined(_MSVC_LANG)
#define EIGEN_COMP_MSVC_LANG _MSVC_LANG
#else
#define EIGEN_COMP_MSVC_LANG 0
#endif

// For the record, here is a table summarizing the possible values for EIGEN_COMP_MSVC_LANG:
// MSVC option                          Standard  MSVC_LANG
// /std:c++14 (default as of VS 2019)   C++14     201402L
// /std:c++17                           C++17     201703L
// /std:c++latest                       >C++17    >201703L

/// \internal EIGEN_COMP_MSVC_STRICT set to 1 if the compiler is really Microsoft Visual C++ and not ,e.g., ICC or
/// clang-cl
#if EIGEN_COMP_MSVC && !(EIGEN_COMP_ICC || EIGEN_COMP_LLVM || EIGEN_COMP_CLANG)
#define EIGEN_COMP_MSVC_STRICT _MSC_VER
#else
#define EIGEN_COMP_MSVC_STRICT 0
#endif

/// \internal EIGEN_COMP_IBM set to xlc version if the compiler is IBM XL C++
// XLC   version
// 3.1   0x0301
// 4.5   0x0405
// 5.0   0x0500
// 12.1  0x0C01
#if defined(__IBMCPP__) || defined(__xlc__) || defined(__ibmxl__)
#define EIGEN_COMP_IBM __xlC__
#else
#define EIGEN_COMP_IBM 0
#endif

/// \internal EIGEN_COMP_PGI set to PGI version if the compiler is Portland Group Compiler
#if defined(__PGI)
#define EIGEN_COMP_PGI (__PGIC__ * 100 + __PGIC_MINOR__)
#else
#define EIGEN_COMP_PGI 0
#endif

/// \internal EIGEN_COMP_NVHPC set to NVHPC version if the compiler is nvc++
#if defined(__NVCOMPILER)
#define EIGEN_COMP_NVHPC (__NVCOMPILER_MAJOR__ * 100 + __NVCOMPILER_MINOR__)
#else
#define EIGEN_COMP_NVHPC 0
#endif

/// \internal EIGEN_COMP_ARM set to 1 if the compiler is ARM Compiler
#if defined(__CC_ARM) || defined(__ARMCC_VERSION)
#define EIGEN_COMP_ARM 1
#else
#define EIGEN_COMP_ARM 0
#endif

/// \internal EIGEN_COMP_EMSCRIPTEN set to 1 if the compiler is Emscripten Compiler
#if defined(__EMSCRIPTEN__)
#define EIGEN_COMP_EMSCRIPTEN 1
#else
#define EIGEN_COMP_EMSCRIPTEN 0
#endif

/// \internal EIGEN_COMP_FCC set to FCC version if the compiler is Fujitsu Compiler (traditional mode)
/// \note The Fujitsu C/C++ compiler uses the traditional mode based
/// on EDG g++ 6.1 by default or if invoked with the -Nnoclang flag
#if defined(__FUJITSU)
#define EIGEN_COMP_FCC (__FCC_major__ * 100 + __FCC_minor__ * 10 + __FCC_patchlevel__)
#else
#define EIGEN_COMP_FCC 0
#endif

/// \internal EIGEN_COMP_CLANGFCC set to FCC version if the compiler is Fujitsu Compiler (Clang mode)
/// \note The Fujitsu C/C++ compiler uses the non-traditional mode
/// based on Clang 7.1.0 if invoked with the -Nclang flag
#if defined(__CLANG_FUJITSU)
#define EIGEN_COMP_CLANGFCC (__FCC_major__ * 100 + __FCC_minor__ * 10 + __FCC_patchlevel__)
#else
#define EIGEN_COMP_CLANGFCC 0
#endif

/// \internal EIGEN_COMP_CPE set to CPE version if the compiler is HPE Cray Compiler (GCC based)
/// \note This is the SVE-enabled C/C++ compiler from the HPE Cray
/// Programming Environment (CPE) based on Cray GCC 8.1
#if defined(_CRAYC) && !defined(__clang__)
#define EIGEN_COMP_CPE (_RELEASE_MAJOR * 100 + _RELEASE_MINOR * 10 + _RELEASE_PATCHLEVEL)
#else
#define EIGEN_COMP_CPE 0
#endif

/// \internal EIGEN_COMP_CLANGCPE set to CPE version if the compiler is HPE Cray Compiler (Clang based)
/// \note This is the C/C++ compiler from the HPE Cray Programming
/// Environment (CPE) based on Cray Clang 11.0 without SVE-support
#if defined(_CRAYC) && defined(__clang__)
#define EIGEN_COMP_CLANGCPE (_RELEASE_MAJOR * 100 + _RELEASE_MINOR * 10 + _RELEASE_PATCHLEVEL)
#else
#define EIGEN_COMP_CLANGCPE 0
#endif

/// \internal EIGEN_COMP_LCC set to 1 if the compiler is MCST-LCC (MCST eLbrus Compiler Collection)
#if defined(__LCC__) && defined(__MCST__)
#define EIGEN_COMP_LCC (__LCC__ * 100 + __LCC_MINOR__)
#else
#define EIGEN_COMP_LCC 0
#endif

/// \internal EIGEN_COMP_GNUC_STRICT set to 1 if the compiler is really GCC and not a compatible compiler (e.g., ICC,
/// clang, mingw, etc.)
#if EIGEN_COMP_GNUC &&                                                                                      \
    !(EIGEN_COMP_CLANG || EIGEN_COMP_ICC || EIGEN_COMP_CLANGICC || EIGEN_COMP_MINGW || EIGEN_COMP_PGI ||    \
      EIGEN_COMP_IBM || EIGEN_COMP_ARM || EIGEN_COMP_EMSCRIPTEN || EIGEN_COMP_FCC || EIGEN_COMP_CLANGFCC || \
      EIGEN_COMP_CPE || EIGEN_COMP_CLANGCPE || EIGEN_COMP_LCC)
#define EIGEN_COMP_GNUC_STRICT 1
#else
#define EIGEN_COMP_GNUC_STRICT 0
#endif

// GCC, and compilers that pretend to be it, have different version schemes, so this only makes sense to use with the
// real GCC.
#if EIGEN_COMP_GNUC_STRICT
#define EIGEN_GNUC_STRICT_AT_LEAST(x, y, z)                   \
  ((__GNUC__ > x) || (__GNUC__ == x && __GNUC_MINOR__ > y) || \
   (__GNUC__ == x && __GNUC_MINOR__ == y && __GNUC_PATCHLEVEL__ >= z))
#define EIGEN_GNUC_STRICT_LESS_THAN(x, y, z)                  \
  ((__GNUC__ < x) || (__GNUC__ == x && __GNUC_MINOR__ < y) || \
   (__GNUC__ == x && __GNUC_MINOR__ == y && __GNUC_PATCHLEVEL__ < z))
#else
#define EIGEN_GNUC_STRICT_AT_LEAST(x, y, z) 0
#define EIGEN_GNUC_STRICT_LESS_THAN(x, y, z) 0
#endif

/// \internal EIGEN_COMP_CLANG_STRICT set to 1 if the compiler is really Clang and not a compatible compiler (e.g.,
/// AppleClang, etc.)
#if EIGEN_COMP_CLANG && !(EIGEN_COMP_CLANGAPPLE || EIGEN_COMP_CLANGICC || EIGEN_COMP_CLANGFCC || EIGEN_COMP_CLANGCPE)
#define EIGEN_COMP_CLANG_STRICT 1
#else
#define EIGEN_COMP_CLANG_STRICT 0
#endif

// Clang, and compilers forked from it, have different version schemes, so this only makes sense to use with the real
// Clang.
#if EIGEN_COMP_CLANG_STRICT
#define EIGEN_CLANG_STRICT_AT_LEAST(x, y, z)                                 \
  ((__clang_major__ > x) || (__clang_major__ == x && __clang_minor__ > y) || \
   (__clang_major__ == x && __clang_minor__ == y && __clang_patchlevel__ >= z))
#define EIGEN_CLANG_STRICT_LESS_THAN(x, y, z)                                \
  ((__clang_major__ < x) || (__clang_major__ == x && __clang_minor__ < y) || \
   (__clang_major__ == x && __clang_minor__ == y && __clang_patchlevel__ < z))
#else
#define EIGEN_CLANG_STRICT_AT_LEAST(x, y, z) 0
#define EIGEN_CLANG_STRICT_LESS_THAN(x, y, z) 0
#endif

//------------------------------------------------------------------------------------------
// Architecture identification, EIGEN_ARCH_*
//------------------------------------------------------------------------------------------

#if defined(__x86_64__) || (defined(_M_X64) && !defined(_M_ARM64EC)) || defined(__amd64)
#define EIGEN_ARCH_x86_64 1
#else
#define EIGEN_ARCH_x86_64 0
#endif

#if defined(__i386__) || defined(_M_IX86) || defined(_X86_) || defined(__i386)
#define EIGEN_ARCH_i386 1
#else
#define EIGEN_ARCH_i386 0
#endif

#if EIGEN_ARCH_x86_64 || EIGEN_ARCH_i386
#define EIGEN_ARCH_i386_OR_x86_64 1
#else
#define EIGEN_ARCH_i386_OR_x86_64 0
#endif

/// \internal EIGEN_ARCH_ARM set to 1 if the architecture is ARM
#if defined(__arm__)
#define EIGEN_ARCH_ARM 1
#else
#define EIGEN_ARCH_ARM 0
#endif

/// \internal EIGEN_ARCH_ARM64 set to 1 if the architecture is ARM64
#if defined(__aarch64__) || defined(_M_ARM64) || defined(_M_ARM64EC)
#define EIGEN_ARCH_ARM64 1
#else
#define EIGEN_ARCH_ARM64 0
#endif

/// \internal EIGEN_ARCH_ARM_OR_ARM64 set to 1 if the architecture is ARM or ARM64
#if EIGEN_ARCH_ARM || EIGEN_ARCH_ARM64
#define EIGEN_ARCH_ARM_OR_ARM64 1
#else
#define EIGEN_ARCH_ARM_OR_ARM64 0
#endif

/// \internal EIGEN_ARCH_ARMV8 set to 1 if the architecture is armv8 or greater.
#if EIGEN_ARCH_ARM_OR_ARM64 && defined(__ARM_ARCH) && __ARM_ARCH >= 8
#define EIGEN_ARCH_ARMV8 1
#else
#define EIGEN_ARCH_ARMV8 0
#endif

/// \internal EIGEN_HAS_ARM64_FP16 set to 1 if the architecture provides an IEEE
/// compliant Arm fp16 type
#if EIGEN_ARCH_ARM_OR_ARM64
#ifndef EIGEN_HAS_ARM64_FP16
#if defined(__ARM_FP16_FORMAT_IEEE)
#define EIGEN_HAS_ARM64_FP16 1
#else
#define EIGEN_HAS_ARM64_FP16 0
#endif
#endif
#endif

/// \internal EIGEN_ARCH_MIPS set to 1 if the architecture is MIPS
#if defined(__mips__) || defined(__mips)
#define EIGEN_ARCH_MIPS 1
#else
#define EIGEN_ARCH_MIPS 0
#endif

/// \internal EIGEN_ARCH_LOONGARCH64 set to 1 if the architecture is LOONGARCH64
#if defined(__loongarch64)
#define EIGEN_ARCH_LOONGARCH64 1
#else
#define EIGEN_ARCH_LOONGARCH64 0
#endif

/// \internal EIGEN_ARCH_SPARC set to 1 if the architecture is SPARC
#if defined(__sparc__) || defined(__sparc)
#define EIGEN_ARCH_SPARC 1
#else
#define EIGEN_ARCH_SPARC 0
#endif

/// \internal EIGEN_ARCH_IA64 set to 1 if the architecture is Intel Itanium
#if defined(__ia64__)
#define EIGEN_ARCH_IA64 1
#else
#define EIGEN_ARCH_IA64 0
#endif

/// \internal EIGEN_ARCH_PPC set to 1 if the architecture is PowerPC
#if defined(__powerpc__) || defined(__ppc__) || defined(_M_PPC) || defined(__POWERPC__)
#define EIGEN_ARCH_PPC 1
#else
#define EIGEN_ARCH_PPC 0
#endif

//------------------------------------------------------------------------------------------
// Operating system identification, EIGEN_OS_*
//------------------------------------------------------------------------------------------

/// \internal EIGEN_OS_UNIX set to 1 if the OS is a unix variant
#if defined(__unix__) || defined(__unix)
#define EIGEN_OS_UNIX 1
#else
#define EIGEN_OS_UNIX 0
#endif

/// \internal EIGEN_OS_LINUX set to 1 if the OS is based on Linux kernel
#if defined(__linux__)
#define EIGEN_OS_LINUX 1
#else
#define EIGEN_OS_LINUX 0
#endif

/// \internal EIGEN_OS_ANDROID set to 1 if the OS is Android
// note: ANDROID is defined when using ndk_build, __ANDROID__ is defined when using a standalone toolchain.
#if defined(__ANDROID__) || defined(ANDROID)
#define EIGEN_OS_ANDROID 1

// Since NDK r16, `__NDK_MAJOR__` and `__NDK_MINOR__` are defined in
// <android/ndk-version.h>. For NDK < r16, users should define these macros,
// e.g. `-D__NDK_MAJOR__=11 -D__NKD_MINOR__=0` for NDK r11.
#if defined __has_include
#if __has_include(<android/ndk-version.h>)
#include <android/ndk-version.h>
#endif
#endif

#else
#define EIGEN_OS_ANDROID 0
#endif

/// \internal EIGEN_OS_GNULINUX set to 1 if the OS is GNU Linux and not Linux-based OS (e.g., not android)
#if defined(__gnu_linux__) && !(EIGEN_OS_ANDROID)
#define EIGEN_OS_GNULINUX 1
#else
#define EIGEN_OS_GNULINUX 0
#endif

/// \internal EIGEN_OS_BSD set to 1 if the OS is a BSD variant
#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__) || defined(__DragonFly__)
#define EIGEN_OS_BSD 1
#else
#define EIGEN_OS_BSD 0
#endif

/// \internal EIGEN_OS_MAC set to 1 if the OS is MacOS
#if defined(__APPLE__)
#define EIGEN_OS_MAC 1
#else
#define EIGEN_OS_MAC 0
#endif

/// \internal EIGEN_OS_QNX set to 1 if the OS is QNX
#if defined(__QNX__)
#define EIGEN_OS_QNX 1
#else
#define EIGEN_OS_QNX 0
#endif

/// \internal EIGEN_OS_WIN set to 1 if the OS is Windows based
#if defined(_WIN32)
#define EIGEN_OS_WIN 1
#else
#define EIGEN_OS_WIN 0
#endif

/// \internal EIGEN_OS_WIN64 set to 1 if the OS is Windows 64bits
#if defined(_WIN64)
#define EIGEN_OS_WIN64 1
#else
#define EIGEN_OS_WIN64 0
#endif

/// \internal EIGEN_OS_WINCE set to 1 if the OS is Windows CE
#if defined(_WIN32_WCE)
#define EIGEN_OS_WINCE 1
#else
#define EIGEN_OS_WINCE 0
#endif

/// \internal EIGEN_OS_CYGWIN set to 1 if the OS is Windows/Cygwin
#if defined(__CYGWIN__)
#define EIGEN_OS_CYGWIN 1
#else
#define EIGEN_OS_CYGWIN 0
#endif

/// \internal EIGEN_OS_WIN_STRICT set to 1 if the OS is really Windows and not some variants
#if EIGEN_OS_WIN && !(EIGEN_OS_WINCE || EIGEN_OS_CYGWIN)
#define EIGEN_OS_WIN_STRICT 1
#else
#define EIGEN_OS_WIN_STRICT 0
#endif

/// \internal EIGEN_OS_SUN set to __SUNPRO_C if the OS is SUN
// compiler  solaris   __SUNPRO_C
// version   studio
// 5.7       10        0x570
// 5.8       11        0x580
// 5.9       12        0x590
// 5.10	     12.1      0x5100
// 5.11	     12.2      0x5110
// 5.12	     12.3      0x5120
#if (defined(sun) || defined(__sun)) && !(defined(__SVR4) || defined(__svr4__))
#define EIGEN_OS_SUN __SUNPRO_C
#else
#define EIGEN_OS_SUN 0
#endif

/// \internal EIGEN_OS_SOLARIS set to 1 if the OS is Solaris
#if (defined(sun) || defined(__sun)) && (defined(__SVR4) || defined(__svr4__))
#define EIGEN_OS_SOLARIS 1
#else
#define EIGEN_OS_SOLARIS 0
#endif

//------------------------------------------------------------------------------------------
// Detect GPU compilers and architectures
//------------------------------------------------------------------------------------------

// NVCC is not supported as the target platform for HIPCC
// Note that this also makes EIGEN_CUDACC and EIGEN_HIPCC mutually exclusive
#if defined(__NVCC__) && defined(__HIPCC__)
#error "NVCC as the target platform for HIPCC is currently not supported."
#endif

#if defined(__CUDACC__) && !defined(EIGEN_NO_CUDA) && !defined(__SYCL_DEVICE_ONLY__)
// Means the compiler is either nvcc or clang with CUDA enabled
#define EIGEN_CUDACC __CUDACC__
#endif

#if defined(__CUDA_ARCH__) && !defined(EIGEN_NO_CUDA) && !defined(__SYCL_DEVICE_ONLY__)
// Means we are generating code for the device
#define EIGEN_CUDA_ARCH __CUDA_ARCH__
#endif

#if defined(EIGEN_CUDACC)
#include <cuda.h>
#define EIGEN_CUDA_SDK_VER (CUDA_VERSION * 10)
#else
#define EIGEN_CUDA_SDK_VER 0
#endif

#if defined(__HIPCC__) && !defined(EIGEN_NO_HIP) && !defined(__SYCL_DEVICE_ONLY__)
// Means the compiler is HIPCC (analogous to EIGEN_CUDACC, but for HIP)
#define EIGEN_HIPCC __HIPCC__

// We need to include hip_runtime.h here because it pulls in
// ++ hip_common.h which contains the define for  __HIP_DEVICE_COMPILE__
// ++ host_defines.h which contains the defines for the __host__ and __device__ macros
#include <hip/hip_runtime.h>

#if defined(__HIP_DEVICE_COMPILE__) && !defined(__SYCL_DEVICE_ONLY__)
// analogous to EIGEN_CUDA_ARCH, but for HIP
#define EIGEN_HIP_DEVICE_COMPILE __HIP_DEVICE_COMPILE__
#endif

// For HIP (ROCm 3.5 and higher), we need to explicitly set the launch_bounds attribute
// value to 1024. The compiler assigns a default value of 256 when the attribute is not
// specified. This results in failures on the HIP platform, for cases when a GPU kernel
// without an explicit launch_bounds attribute is called with a threads_per_block value
// greater than 256.
//
// This is a regression in functioanlity and is expected to be fixed within the next
// couple of ROCm releases (compiler will go back to using 1024 value as the default)
//
// In the meantime, we will use a "only enabled for HIP" macro to set the launch_bounds
// attribute.

#define EIGEN_HIP_LAUNCH_BOUNDS_1024 __launch_bounds__(1024)

#endif

#if !defined(EIGEN_HIP_LAUNCH_BOUNDS_1024)
#define EIGEN_HIP_LAUNCH_BOUNDS_1024
#endif  // !defined(EIGEN_HIP_LAUNCH_BOUNDS_1024)

// Unify CUDA/HIPCC

#if defined(EIGEN_CUDACC) || defined(EIGEN_HIPCC)
//
// If either EIGEN_CUDACC or EIGEN_HIPCC is defined, then define EIGEN_GPUCC
//
#define EIGEN_GPUCC
//
// EIGEN_HIPCC implies the HIP compiler and is used to tweak Eigen code for use in HIP kernels
// EIGEN_CUDACC implies the CUDA compiler and is used to tweak Eigen code for use in CUDA kernels
//
// In most cases the same tweaks are required to the Eigen code to enable in both the HIP and CUDA kernels.
// For those cases, the corresponding code should be guarded with
//      #if defined(EIGEN_GPUCC)
// instead of
//      #if defined(EIGEN_CUDACC) || defined(EIGEN_HIPCC)
//
// For cases where the tweak is specific to HIP, the code should be guarded with
//      #if defined(EIGEN_HIPCC)
//
// For cases where the tweak is specific to CUDA, the code should be guarded with
//      #if defined(EIGEN_CUDACC)
//
#endif

#if defined(EIGEN_CUDA_ARCH) || defined(EIGEN_HIP_DEVICE_COMPILE)
//
// If either EIGEN_CUDA_ARCH or EIGEN_HIP_DEVICE_COMPILE is defined, then define EIGEN_GPU_COMPILE_PHASE
//
#define EIGEN_GPU_COMPILE_PHASE
//
// GPU compilers (HIPCC, NVCC) typically do two passes over the source code,
//   + one to compile the source for the "host" (ie CPU)
//   + another to compile the source for the "device" (ie. GPU)
//
// Code that needs to enabled only during the either the "host" or "device" compilation phase
// needs to be guarded with a macro that indicates the current compilation phase
//
// EIGEN_HIP_DEVICE_COMPILE implies the device compilation phase in HIP
// EIGEN_CUDA_ARCH implies the device compilation phase in CUDA
//
// In most cases, the "host" / "device" specific code is the same for both HIP and CUDA
// For those cases, the code should be guarded with
//       #if defined(EIGEN_GPU_COMPILE_PHASE)
// instead of
//       #if defined(EIGEN_CUDA_ARCH) || defined(EIGEN_HIP_DEVICE_COMPILE)
//
// For cases where the tweak is specific to HIP, the code should be guarded with
//      #if defined(EIGEN_HIP_DEVICE_COMPILE)
//
// For cases where the tweak is specific to CUDA, the code should be guarded with
//      #if defined(EIGEN_CUDA_ARCH)
//
#endif

/// \internal EIGEN_HAS_ARM64_FP16_VECTOR_ARITHMETIC set to 1 if the architecture
/// supports Neon vector intrinsics for fp16.
#if EIGEN_ARCH_ARM_OR_ARM64
#ifndef EIGEN_HAS_ARM64_FP16_VECTOR_ARITHMETIC
// Clang only supports FP16 on aarch64, and not all intrinsics are available
// on A32 anyways even in GCC (e.g. vdiv_f16, vsqrt_f16).
#if EIGEN_ARCH_ARM64 && defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && !defined(EIGEN_GPU_COMPILE_PHASE)
#define EIGEN_HAS_ARM64_FP16_VECTOR_ARITHMETIC 1
#else
#define EIGEN_HAS_ARM64_FP16_VECTOR_ARITHMETIC 0
#endif
#endif
#endif

/// \internal EIGEN_HAS_ARM64_FP16_SCALAR_ARITHMETIC set to 1 if the architecture
/// supports Neon scalar intrinsics for fp16.
#if EIGEN_ARCH_ARM_OR_ARM64
#ifndef EIGEN_HAS_ARM64_FP16_SCALAR_ARITHMETIC
// Clang only supports FP16 on aarch64, and not all intrinsics are available
// on A32 anyways, even in GCC (e.g. vceqh_f16).
#if EIGEN_ARCH_ARM64 && defined(__ARM_FEATURE_FP16_SCALAR_ARITHMETIC) && !defined(EIGEN_GPU_COMPILE_PHASE)
#define EIGEN_HAS_ARM64_FP16_SCALAR_ARITHMETIC 1
#endif
#endif
#endif

#if defined(EIGEN_USE_SYCL) && defined(__SYCL_DEVICE_ONLY__)
// EIGEN_USE_SYCL is a user-defined macro while __SYCL_DEVICE_ONLY__ is a compiler-defined macro.
// In most cases we want to check if both macros are defined which can be done using the define below.
#define SYCL_DEVICE_ONLY
#endif

//------------------------------------------------------------------------------------------
// Detect Compiler/Architecture/OS specific features
//------------------------------------------------------------------------------------------

// Cross compiler wrapper around LLVM's __has_builtin
#ifdef __has_builtin
#define EIGEN_HAS_BUILTIN(x) __has_builtin(x)
#else
#define EIGEN_HAS_BUILTIN(x) 0
#endif

// A Clang feature extension to determine compiler features.
// We use it to determine 'cxx_rvalue_references'
#ifndef __has_feature
#define __has_feature(x) 0
#endif

// The macro EIGEN_CPLUSPLUS is a replacement for __cplusplus/_MSVC_LANG that
// works for both platforms, indicating the C++ standard version number.
//
// With MSVC, without defining /Zc:__cplusplus, the __cplusplus macro will
// report 199711L regardless of the language standard specified via /std.
// We need to rely on _MSVC_LANG instead, which is only available after
// VS2015.3.
#if EIGEN_COMP_MSVC_LANG > 0
#define EIGEN_CPLUSPLUS EIGEN_COMP_MSVC_LANG
#elif EIGEN_COMP_MSVC >= 1900
#define EIGEN_CPLUSPLUS 201103L
#elif defined(__cplusplus)
#define EIGEN_CPLUSPLUS __cplusplus
#else
#define EIGEN_CPLUSPLUS 0
#endif

// The macro EIGEN_COMP_CXXVER defines the c++ version expected by the compiler.
// For instance, if compiling with gcc and -std=c++17, then EIGEN_COMP_CXXVER
// is defined to 17.
#if EIGEN_CPLUSPLUS >= 202002L
#define EIGEN_COMP_CXXVER 20
#elif EIGEN_CPLUSPLUS >= 201703L
#define EIGEN_COMP_CXXVER 17
#elif EIGEN_CPLUSPLUS >= 201402L
#define EIGEN_COMP_CXXVER 14
#elif EIGEN_CPLUSPLUS >= 201103L
#define EIGEN_COMP_CXXVER 11
#else
#define EIGEN_COMP_CXXVER 03
#endif

// The macros EIGEN_HAS_CXX?? defines a rough estimate of available c++ features
// but in practice we should not rely on them but rather on the availability of
// individual features as defined later.
// This is why there is no EIGEN_HAS_CXX17.
#if EIGEN_MAX_CPP_VER < 14 || EIGEN_COMP_CXXVER < 14 || (EIGEN_COMP_MSVC && EIGEN_COMP_MSVC < 1900) || \
    (EIGEN_COMP_ICC && EIGEN_COMP_ICC < 1500) || (EIGEN_COMP_NVCC && EIGEN_COMP_NVCC < 80000) ||       \
    (EIGEN_COMP_CLANG_STRICT && EIGEN_COMP_CLANG < 390) ||                                             \
    (EIGEN_COMP_CLANGAPPLE && EIGEN_COMP_CLANGAPPLE < 9000000) || (EIGEN_COMP_GNUC_STRICT && EIGEN_COMP_GNUC < 510)
#error Eigen requires at least c++14 support.
#endif

// Does the compiler support C99?
// Need to include <cmath> to make sure _GLIBCXX_USE_C99 gets defined
#include <cmath>
#ifndef EIGEN_HAS_C99_MATH
#if ((defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901)) ||                                          \
     (defined(__GNUC__) && defined(_GLIBCXX_USE_C99)) || (defined(_LIBCPP_VERSION) && !defined(_MSC_VER)) || \
     (EIGEN_COMP_MSVC) || defined(SYCL_DEVICE_ONLY))
#define EIGEN_HAS_C99_MATH 1
#else
#define EIGEN_HAS_C99_MATH 0
#endif
#endif

// Does the compiler support std::hash?
#ifndef EIGEN_HAS_STD_HASH
// The std::hash struct is defined in C++11 but is not labelled as a __device__
// function and is not constexpr, so cannot be used on device.
#if !defined(EIGEN_GPU_COMPILE_PHASE)
#define EIGEN_HAS_STD_HASH 1
#else
#define EIGEN_HAS_STD_HASH 0
#endif
#endif  // EIGEN_HAS_STD_HASH

#ifndef EIGEN_HAS_STD_INVOKE_RESULT
#if EIGEN_MAX_CPP_VER >= 17 && EIGEN_COMP_CXXVER >= 17
#define EIGEN_HAS_STD_INVOKE_RESULT 1
#else
#define EIGEN_HAS_STD_INVOKE_RESULT 0
#endif
#endif

#define EIGEN_CONSTEXPR constexpr

// NOTE: the required Apple's clang version is very conservative
//       and it could be that XCode 9 works just fine.
// NOTE: the MSVC version is based on https://en.cppreference.com/w/cpp/compiler_support
//       and not tested.
// NOTE: Intel C++ Compiler Classic (icc) Version 19.0 and later supports dynamic allocation
//       for over-aligned data, but not in a manner that is compatible with Eigen.
//       See https://gitlab.com/libeigen/eigen/-/issues/2575
#ifndef EIGEN_HAS_CXX17_OVERALIGN
#if EIGEN_MAX_CPP_VER >= 17 && EIGEN_COMP_CXXVER >= 17 &&                                                            \
    ((EIGEN_COMP_MSVC >= 1912) || (EIGEN_GNUC_STRICT_AT_LEAST(7, 0, 0)) || (EIGEN_CLANG_STRICT_AT_LEAST(5, 0, 0)) || \
     (EIGEN_COMP_CLANGAPPLE && EIGEN_COMP_CLANGAPPLE >= 10000000)) &&                                                \
    !EIGEN_COMP_ICC
#define EIGEN_HAS_CXX17_OVERALIGN 1
#else
#define EIGEN_HAS_CXX17_OVERALIGN 0
#endif
#endif

#if defined(EIGEN_CUDACC)
// While available already with c++11, this is useful mostly starting with c++14 and relaxed constexpr rules
#if defined(__NVCC__)
// nvcc considers constexpr functions as __host__ __device__ with the option --expt-relaxed-constexpr
#ifdef __CUDACC_RELAXED_CONSTEXPR__
#define EIGEN_CONSTEXPR_ARE_DEVICE_FUNC
#endif
#elif defined(__clang__) && defined(__CUDA__) && __has_feature(cxx_relaxed_constexpr)
// clang++ always considers constexpr functions as implicitly __host__ __device__
#define EIGEN_CONSTEXPR_ARE_DEVICE_FUNC
#endif
#endif

// Does the compiler support the __int128 and __uint128_t extensions for 128-bit
// integer arithmetic?
//
// Clang and GCC define __SIZEOF_INT128__ when these extensions are supported,
// but we avoid using them in certain cases:
//
// * Building using Clang for Windows, where the Clang runtime library has
//   128-bit support only on LP64 architectures, but Windows is LLP64.
#ifndef EIGEN_HAS_BUILTIN_INT128
#if defined(__SIZEOF_INT128__) && !(EIGEN_OS_WIN && EIGEN_COMP_CLANG)
#define EIGEN_HAS_BUILTIN_INT128 1
#else
#define EIGEN_HAS_BUILTIN_INT128 0
#endif
#endif

//------------------------------------------------------------------------------------------
// Preprocessor programming helpers
//------------------------------------------------------------------------------------------

// This macro can be used to prevent from macro expansion, e.g.:
//   std::max EIGEN_NOT_A_MACRO(a,b)
#define EIGEN_NOT_A_MACRO

#define EIGEN_DEBUG_VAR(x) std::cerr << #x << " = " << x << std::endl;

// concatenate two tokens
#define EIGEN_CAT2(a, b) a##b
#define EIGEN_CAT(a, b) EIGEN_CAT2(a, b)

#define EIGEN_COMMA ,

// convert a token to a string
#define EIGEN_MAKESTRING2(a) #a
#define EIGEN_MAKESTRING(a) EIGEN_MAKESTRING2(a)

// EIGEN_STRONG_INLINE is a stronger version of the inline, using __forceinline on MSVC,
// but it still doesn't use GCC's always_inline. This is useful in (common) situations where MSVC needs forceinline
// but GCC is still doing fine with just inline.
#ifndef EIGEN_STRONG_INLINE
#if (EIGEN_COMP_MSVC || EIGEN_COMP_ICC) && !defined(EIGEN_GPUCC)
#define EIGEN_STRONG_INLINE __forceinline
#else
#define EIGEN_STRONG_INLINE inline
#endif
#endif

// EIGEN_ALWAYS_INLINE is the strongest, it has the effect of making the function inline and adding every possible
// attribute to maximize inlining. This should only be used when really necessary: in particular,
// it uses __attribute__((always_inline)) on GCC, which most of the time is useless and can severely harm compile times.
// FIXME with the always_inline attribute,
#if EIGEN_COMP_GNUC && !defined(SYCL_DEVICE_ONLY)
#define EIGEN_ALWAYS_INLINE __attribute__((always_inline)) inline
#else
#define EIGEN_ALWAYS_INLINE EIGEN_STRONG_INLINE
#endif

#if EIGEN_COMP_GNUC
#define EIGEN_DONT_INLINE __attribute__((noinline))
#elif EIGEN_COMP_MSVC
#define EIGEN_DONT_INLINE __declspec(noinline)
#else
#define EIGEN_DONT_INLINE
#endif

#if EIGEN_COMP_GNUC
#define EIGEN_PERMISSIVE_EXPR __extension__
#else
#define EIGEN_PERMISSIVE_EXPR
#endif

// GPU stuff

// Disable some features when compiling with GPU compilers (SYCL/HIPCC)
#if defined(SYCL_DEVICE_ONLY) || defined(EIGEN_HIP_DEVICE_COMPILE)
// Do not try asserts on device code
#ifndef EIGEN_NO_DEBUG
#define EIGEN_NO_DEBUG
#endif

#ifdef EIGEN_INTERNAL_DEBUGGING
#undef EIGEN_INTERNAL_DEBUGGING
#endif
#endif

// No exceptions on device.
#if defined(SYCL_DEVICE_ONLY) || defined(EIGEN_GPU_COMPILE_PHASE)
#ifdef EIGEN_EXCEPTIONS
#undef EIGEN_EXCEPTIONS
#endif
#endif

#if defined(SYCL_DEVICE_ONLY)
#ifndef EIGEN_DONT_VECTORIZE
#define EIGEN_DONT_VECTORIZE
#endif
#define EIGEN_DEVICE_FUNC __attribute__((flatten)) __attribute__((always_inline))
// All functions callable from CUDA/HIP code must be qualified with __device__
#elif defined(EIGEN_GPUCC)
#define EIGEN_DEVICE_FUNC __host__ __device__
#else
#define EIGEN_DEVICE_FUNC
#endif

// this macro allows to get rid of linking errors about multiply defined functions.
//  - static is not very good because it prevents definitions from different object files to be merged.
//           So static causes the resulting linked executable to be bloated with multiple copies of the same function.
//  - inline is not perfect either as it unwantedly hints the compiler toward inlining the function.
#define EIGEN_DECLARE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS EIGEN_DEVICE_FUNC
#define EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS EIGEN_DEVICE_FUNC inline

#ifdef NDEBUG
#ifndef EIGEN_NO_DEBUG
#define EIGEN_NO_DEBUG
#endif
#endif

// eigen_assert can be overridden
#ifndef eigen_assert
#define eigen_assert(x) eigen_plain_assert(x)
#endif

#ifdef EIGEN_INTERNAL_DEBUGGING
#define eigen_internal_assert(x) eigen_assert(x)
#else
#define eigen_internal_assert(x) ((void)0)
#endif

#if defined(EIGEN_NO_DEBUG) || (defined(EIGEN_GPU_COMPILE_PHASE) && defined(EIGEN_NO_DEBUG_GPU))
#define EIGEN_ONLY_USED_FOR_DEBUG(x) EIGEN_UNUSED_VARIABLE(x)
#else
#define EIGEN_ONLY_USED_FOR_DEBUG(x)
#endif

#ifndef EIGEN_NO_DEPRECATED_WARNING
#if EIGEN_COMP_GNUC
#define EIGEN_DEPRECATED __attribute__((deprecated))
#elif EIGEN_COMP_MSVC
#define EIGEN_DEPRECATED __declspec(deprecated)
#else
#define EIGEN_DEPRECATED
#endif
#else
#define EIGEN_DEPRECATED
#endif

#ifndef EIGEN_NO_DEPRECATED_WARNING
#if EIGEN_COMP_GNUC
#define EIGEN_DEPRECATED_WITH_REASON(message) __attribute__((deprecated(message)))
#elif EIGEN_COMP_MSVC
#define EIGEN_DEPRECATED_WITH_REASON(message) __declspec(deprecated(message))
#else
#define EIGEN_DEPRECATED_WITH_REASON(message)
#endif
#else
#define EIGEN_DEPRECATED_WITH_REASON(message)
#endif

#if EIGEN_COMP_GNUC
#define EIGEN_UNUSED __attribute__((unused))
#else
#define EIGEN_UNUSED
#endif

#if EIGEN_COMP_GNUC
#define EIGEN_PRAGMA(tokens) _Pragma(#tokens)
#define EIGEN_DIAGNOSTICS(tokens) EIGEN_PRAGMA(GCC diagnostic tokens)
#define EIGEN_DIAGNOSTICS_OFF(msc, gcc) EIGEN_DIAGNOSTICS(gcc)
#elif EIGEN_COMP_MSVC
#define EIGEN_PRAGMA(tokens) __pragma(tokens)
#define EIGEN_DIAGNOSTICS(tokens) EIGEN_PRAGMA(warning(tokens))
#define EIGEN_DIAGNOSTICS_OFF(msc, gcc) EIGEN_DIAGNOSTICS(msc)
#else
#define EIGEN_PRAGMA(tokens)
#define EIGEN_DIAGNOSTICS(tokens)
#define EIGEN_DIAGNOSTICS_OFF(msc, gcc)
#endif

#define EIGEN_DISABLE_DEPRECATED_WARNING EIGEN_DIAGNOSTICS_OFF(disable : 4996, ignored "-Wdeprecated-declarations")

// Suppresses 'unused variable' warnings.
namespace Eigen {
namespace internal {
template <typename T>
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE constexpr void ignore_unused_variable(const T&) {}
}  // namespace internal
}  // namespace Eigen
#define EIGEN_UNUSED_VARIABLE(var) Eigen::internal::ignore_unused_variable(var);

#if !defined(EIGEN_ASM_COMMENT)
#if EIGEN_COMP_GNUC && (EIGEN_ARCH_i386_OR_x86_64 || EIGEN_ARCH_ARM_OR_ARM64)
#define EIGEN_ASM_COMMENT(X) __asm__("#" X)
#else
#define EIGEN_ASM_COMMENT(X)
#endif
#endif

// Acts as a barrier preventing operations involving `X` from crossing. This
// occurs, for example, in the fast rounding trick where a magic constant is
// added then subtracted, which is otherwise compiled away with -ffast-math.
//
// See bug 1674
#if defined(EIGEN_GPU_COMPILE_PHASE)
#define EIGEN_OPTIMIZATION_BARRIER(X)
#endif

#if !defined(EIGEN_OPTIMIZATION_BARRIER)
// Implement the barrier on GNUC compilers or clang-cl.
#if EIGEN_COMP_GNUC || (defined(__clang__) && defined(_MSC_VER))
// According to https://gcc.gnu.org/onlinedocs/gcc/Constraints.html:
//   X: Any operand whatsoever.
//   r: A register operand is allowed provided that it is in a general
//      register.
//   g: Any register, memory or immediate integer operand is allowed, except
//      for registers that are not general registers.
//   w: (AArch32/AArch64) Floating point register, Advanced SIMD vector
//      register or SVE vector register.
//   x: (SSE) Any SSE register.
//      (AArch64) Like w, but restricted to registers 0 to 15 inclusive.
//   v: (PowerPC) An Altivec vector register.
//   wa:(PowerPC) A VSX register.
//
// "X" (uppercase) should work for all cases, though this seems to fail for
// some versions of GCC for arm/aarch64 with
//   "error: inconsistent operand constraints in an 'asm'"
// Clang x86_64/arm/aarch64 seems to require "g" to support both scalars and
// vectors, otherwise
//   "error: non-trivial scalar-to-vector conversion, possible invalid
//    constraint for vector type"
//
// GCC for ppc64le generates an internal compiler error with x/X/g.
// GCC for AVX generates an internal compiler error with X.
//
// Tested on icc/gcc/clang for sse, avx, avx2, avx512dq
//           gcc for arm, aarch64,
//           gcc for ppc64le,
// both vectors and scalars.
//
// Note that this is restricted to plain types - this will not work
// directly for std::complex<T>, Eigen::half, Eigen::bfloat16. For these,
// you will need to apply to the underlying POD type.
#if EIGEN_ARCH_PPC && EIGEN_COMP_GNUC_STRICT
// This seems to be broken on clang. Packet4f is loaded into a single
//   register rather than a vector, zeroing out some entries. Integer
//   types also generate a compile error.
#if EIGEN_OS_MAC
// General, Altivec for Apple (VSX were added in ISA v2.06):
#define EIGEN_OPTIMIZATION_BARRIER(X) __asm__("" : "+r,v"(X));
#else
// General, Altivec, VSX otherwise:
#define EIGEN_OPTIMIZATION_BARRIER(X) __asm__("" : "+r,v,wa"(X));
#endif
#elif EIGEN_ARCH_ARM_OR_ARM64
#ifdef __ARM_FP
// General, VFP or NEON.
// Clang doesn't like "r",
//    error: non-trivial scalar-to-vector conversion, possible invalid
//           constraint for vector typ
#define EIGEN_OPTIMIZATION_BARRIER(X) __asm__("" : "+g,w"(X));
#else
// Arm without VFP or NEON.
// "w" constraint will not compile.
#define EIGEN_OPTIMIZATION_BARRIER(X) __asm__("" : "+g"(X));
#endif
#elif EIGEN_ARCH_i386_OR_x86_64
// General, SSE.
#define EIGEN_OPTIMIZATION_BARRIER(X) __asm__("" : "+g,x"(X));
#else
// Not implemented for other architectures.
#define EIGEN_OPTIMIZATION_BARRIER(X)
#endif
#else
// Not implemented for other compilers.
#define EIGEN_OPTIMIZATION_BARRIER(X)
#endif
#endif

#if EIGEN_COMP_MSVC
// NOTE MSVC often gives C4127 warnings with compiletime if statements. See bug 1362.
// This workaround is ugly, but it does the job.
#define EIGEN_CONST_CONDITIONAL(cond) (void)0, cond
#else
#define EIGEN_CONST_CONDITIONAL(cond) cond
#endif

#ifdef EIGEN_DONT_USE_RESTRICT_KEYWORD
#define EIGEN_RESTRICT
#endif
#ifndef EIGEN_RESTRICT
#define EIGEN_RESTRICT __restrict
#endif

#ifndef EIGEN_DEFAULT_IO_FORMAT
#ifdef EIGEN_MAKING_DOCS
// format used in Eigen's documentation
// needed to define it here as escaping characters in CMake add_definition's argument seems very problematic.
#define EIGEN_DEFAULT_IO_FORMAT Eigen::IOFormat(3, 0, " ", "\n", "", "")
#else
#define EIGEN_DEFAULT_IO_FORMAT Eigen::IOFormat()
#endif
#endif

// just an empty macro !
#define EIGEN_EMPTY

// When compiling CUDA/HIP device code with NVCC or HIPCC
// pull in math functions from the global namespace.
// In host mode, and when device code is compiled with clang,
// use the std versions.
#if (defined(EIGEN_CUDA_ARCH) && defined(__NVCC__)) || defined(EIGEN_HIP_DEVICE_COMPILE)
#define EIGEN_USING_STD(FUNC) using ::FUNC;
#else
#define EIGEN_USING_STD(FUNC) using std::FUNC;
#endif

#if EIGEN_COMP_CLANG  // workaround clang bug (see http://forum.kde.org/viewtopic.php?f=74&t=102653)
#define EIGEN_INHERIT_ASSIGNMENT_EQUAL_OPERATOR(Derived)                                           \
  using Base::operator=;                                                                           \
  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Derived& operator=(const Derived& other) {                 \
    Base::operator=(other);                                                                        \
    return *this;                                                                                  \
  }                                                                                                \
  template <typename OtherDerived>                                                                 \
  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Derived& operator=(const DenseBase<OtherDerived>& other) { \
    Base::operator=(other.derived());                                                              \
    return *this;                                                                                  \
  }
#else
#define EIGEN_INHERIT_ASSIGNMENT_EQUAL_OPERATOR(Derived)                           \
  using Base::operator=;                                                           \
  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Derived& operator=(const Derived& other) { \
    Base::operator=(other);                                                        \
    return *this;                                                                  \
  }
#endif

/**
 * \internal
 * \brief Macro to explicitly define the default copy constructor.
 * This is necessary, because the implicit definition is deprecated if the copy-assignment is overridden.
 */
#define EIGEN_DEFAULT_COPY_CONSTRUCTOR(CLASS) EIGEN_DEVICE_FUNC CLASS(const CLASS&) = default;

/** \internal
 * \brief Macro to manually inherit assignment operators.
 * This is necessary, because the implicitly defined assignment operator gets deleted when a custom operator= is
 * defined. With C++11 or later this also default-implements the copy-constructor
 */
#define EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Derived) \
  EIGEN_INHERIT_ASSIGNMENT_EQUAL_OPERATOR(Derived)  \
  EIGEN_DEFAULT_COPY_CONSTRUCTOR(Derived)

/** \internal
 * \brief Macro to manually define default constructors and destructors.
 * This is necessary when the copy constructor is re-defined.
 * For empty helper classes this should usually be protected, to avoid accidentally creating empty objects.
 *
 * Hiding the default destructor lead to problems in C++03 mode together with boost::multiprecision
 */
#define EIGEN_DEFAULT_EMPTY_CONSTRUCTOR_AND_DESTRUCTOR(Derived) \
  EIGEN_DEVICE_FUNC Derived() = default;                        \
  EIGEN_DEVICE_FUNC ~Derived() = default;

/**
 * Just a side note. Commenting within defines works only by documenting
 * behind the object (via '!<'). Comments cannot be multi-line and thus
 * we have these extra long lines. What is confusing doxygen over here is
 * that we use '\' and basically have a bunch of typedefs with their
 * documentation in a single line.
 **/

#define EIGEN_GENERIC_PUBLIC_INTERFACE(Derived)                                                                        \
  typedef typename Eigen::internal::traits<Derived>::Scalar                                                            \
      Scalar; /*!< \brief Numeric type, e.g. float, double, int or std::complex<float>. */                             \
  typedef typename Eigen::NumTraits<Scalar>::Real                                                                      \
      RealScalar; /*!< \brief The underlying numeric type for composed scalar types. \details In cases where Scalar is \
                     e.g. std::complex<T>, T were corresponding to RealScalar. */                                      \
  typedef typename Base::CoeffReturnType                                                                               \
      CoeffReturnType; /*!< \brief The return type for coefficient access. \details Depending on whether the object    \
                          allows direct coefficient access (e.g. for a MatrixXd), this type is either 'const Scalar&'  \
                          or simply 'Scalar' for objects that do not allow direct coefficient access. */               \
  typedef typename Eigen::internal::ref_selector<Derived>::type Nested;                                                \
  typedef typename Eigen::internal::traits<Derived>::StorageKind StorageKind;                                          \
  typedef typename Eigen::internal::traits<Derived>::StorageIndex StorageIndex;                                        \
  enum CompileTimeTraits {                                                                                             \
    RowsAtCompileTime = Eigen::internal::traits<Derived>::RowsAtCompileTime,                                           \
    ColsAtCompileTime = Eigen::internal::traits<Derived>::ColsAtCompileTime,                                           \
    Flags = Eigen::internal::traits<Derived>::Flags,                                                                   \
    SizeAtCompileTime = Base::SizeAtCompileTime,                                                                       \
    MaxSizeAtCompileTime = Base::MaxSizeAtCompileTime,                                                                 \
    IsVectorAtCompileTime = Base::IsVectorAtCompileTime                                                                \
  };                                                                                                                   \
  using Base::derived;                                                                                                 \
  using Base::const_cast_derived;

// FIXME Maybe the EIGEN_DENSE_PUBLIC_INTERFACE could be removed as importing PacketScalar is rarely needed
#define EIGEN_DENSE_PUBLIC_INTERFACE(Derived) \
  EIGEN_GENERIC_PUBLIC_INTERFACE(Derived)     \
  typedef typename Base::PacketScalar PacketScalar;

#if EIGEN_HAS_BUILTIN(__builtin_expect) || EIGEN_COMP_GNUC
#define EIGEN_PREDICT_FALSE(x) (__builtin_expect(x, false))
#define EIGEN_PREDICT_TRUE(x) (__builtin_expect(false || (x), true))
#else
#define EIGEN_PREDICT_FALSE(x) (x)
#define EIGEN_PREDICT_TRUE(x) (x)
#endif

// the expression type of a standard coefficient wise binary operation
#define EIGEN_CWISE_BINARY_RETURN_TYPE(LHS, RHS, OPNAME)                                                       \
  CwiseBinaryOp<EIGEN_CAT(EIGEN_CAT(internal::scalar_, OPNAME), _op) < typename internal::traits<LHS>::Scalar, \
                typename internal::traits<RHS>::Scalar>,                                                       \
      const LHS, const RHS >

#define EIGEN_MAKE_CWISE_BINARY_OP(METHOD, OPNAME)                                                                \
  template <typename OtherDerived>                                                                                \
  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const EIGEN_CWISE_BINARY_RETURN_TYPE(                                     \
      Derived, OtherDerived, OPNAME)(METHOD)(const EIGEN_CURRENT_STORAGE_BASE_CLASS<OtherDerived>& other) const { \
    return EIGEN_CWISE_BINARY_RETURN_TYPE(Derived, OtherDerived, OPNAME)(derived(), other.derived());             \
  }

#define EIGEN_SCALAR_BINARY_SUPPORTED(OPNAME, TYPEA, TYPEB)     \
  (Eigen::internal::has_ReturnType<Eigen::ScalarBinaryOpTraits< \
       TYPEA, TYPEB, EIGEN_CAT(EIGEN_CAT(Eigen::internal::scalar_, OPNAME), _op) < TYPEA, TYPEB> > > ::value)

#define EIGEN_EXPR_BINARYOP_SCALAR_RETURN_TYPE(EXPR, SCALAR, OPNAME)                                            \
  CwiseBinaryOp<EIGEN_CAT(EIGEN_CAT(internal::scalar_, OPNAME), _op) < typename internal::traits<EXPR>::Scalar, \
                SCALAR>,                                                                                        \
      const EXPR, const typename internal::plain_constant_type<EXPR, SCALAR>::type >

#define EIGEN_SCALAR_BINARYOP_EXPR_RETURN_TYPE(SCALAR, EXPR, OPNAME)           \
  CwiseBinaryOp<EIGEN_CAT(EIGEN_CAT(internal::scalar_, OPNAME), _op) < SCALAR, \
                typename internal::traits<EXPR>::Scalar>,                      \
      const typename internal::plain_constant_type<EXPR, SCALAR>::type, const EXPR >

#define EIGEN_MAKE_SCALAR_BINARY_OP_ONTHERIGHT(METHOD, OPNAME)                                                       \
  template <typename T>                                                                                              \
  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const EIGEN_EXPR_BINARYOP_SCALAR_RETURN_TYPE(                                \
      Derived,                                                                                                       \
      typename internal::promote_scalar_arg<Scalar EIGEN_COMMA T EIGEN_COMMA EIGEN_SCALAR_BINARY_SUPPORTED(          \
          OPNAME, Scalar, T)>::type,                                                                                 \
      OPNAME)(METHOD)(const T& scalar) const {                                                                       \
    typedef typename internal::promote_scalar_arg<Scalar, T, EIGEN_SCALAR_BINARY_SUPPORTED(OPNAME, Scalar, T)>::type \
        PromotedT;                                                                                                   \
    return EIGEN_EXPR_BINARYOP_SCALAR_RETURN_TYPE(Derived, PromotedT, OPNAME)(                                       \
        derived(), typename internal::plain_constant_type<Derived, PromotedT>::type(                                 \
                       derived().rows(), derived().cols(), internal::scalar_constant_op<PromotedT>(scalar)));        \
  }

#define EIGEN_MAKE_SCALAR_BINARY_OP_ONTHELEFT(METHOD, OPNAME)                                                        \
  template <typename T>                                                                                              \
  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE friend const EIGEN_SCALAR_BINARYOP_EXPR_RETURN_TYPE(                         \
      typename internal::promote_scalar_arg<Scalar EIGEN_COMMA T EIGEN_COMMA EIGEN_SCALAR_BINARY_SUPPORTED(          \
          OPNAME, T, Scalar)>::type,                                                                                 \
      Derived, OPNAME)(METHOD)(const T& scalar, const StorageBaseType& matrix) {                                     \
    typedef typename internal::promote_scalar_arg<Scalar, T, EIGEN_SCALAR_BINARY_SUPPORTED(OPNAME, T, Scalar)>::type \
        PromotedT;                                                                                                   \
    return EIGEN_SCALAR_BINARYOP_EXPR_RETURN_TYPE(PromotedT, Derived, OPNAME)(                                       \
        typename internal::plain_constant_type<Derived, PromotedT>::type(                                            \
            matrix.derived().rows(), matrix.derived().cols(), internal::scalar_constant_op<PromotedT>(scalar)),      \
        matrix.derived());                                                                                           \
  }

#define EIGEN_MAKE_SCALAR_BINARY_OP(METHOD, OPNAME)     \
  EIGEN_MAKE_SCALAR_BINARY_OP_ONTHELEFT(METHOD, OPNAME) \
  EIGEN_MAKE_SCALAR_BINARY_OP_ONTHERIGHT(METHOD, OPNAME)

#if (defined(_CPPUNWIND) || defined(__EXCEPTIONS)) && !defined(EIGEN_CUDA_ARCH) && !defined(EIGEN_EXCEPTIONS) && \
    !defined(EIGEN_USE_SYCL) && !defined(EIGEN_HIP_DEVICE_COMPILE)
#define EIGEN_EXCEPTIONS
#endif

#ifdef EIGEN_EXCEPTIONS
#define EIGEN_THROW_X(X) throw X
#define EIGEN_THROW throw
#define EIGEN_TRY try
#define EIGEN_CATCH(X) catch (X)
#else
#if defined(EIGEN_CUDA_ARCH)
#define EIGEN_THROW_X(X) asm("trap;")
#define EIGEN_THROW asm("trap;")
#elif defined(EIGEN_HIP_DEVICE_COMPILE)
#define EIGEN_THROW_X(X) asm("s_trap 0")
#define EIGEN_THROW asm("s_trap 0")
#else
#define EIGEN_THROW_X(X) std::abort()
#define EIGEN_THROW std::abort()
#endif
#define EIGEN_TRY if (true)
#define EIGEN_CATCH(X) else
#endif

// The all function is used to enable a variadic version of eigen_assert which can take a parameter pack as its input.
namespace Eigen {
namespace internal {

EIGEN_DEVICE_FUNC inline bool all() { return true; }

template <typename T, typename... Ts>
EIGEN_DEVICE_FUNC bool all(T t, Ts... ts) {
  return t && all(ts...);
}

}  // namespace internal
}  // namespace Eigen

// provide override and final specifiers if they are available:
#define EIGEN_OVERRIDE override
#define EIGEN_FINAL final

// Wrapping #pragma unroll in a macro since it is required for SYCL
#if defined(SYCL_DEVICE_ONLY)
#if defined(_MSC_VER)
#define EIGEN_UNROLL_LOOP __pragma(unroll)
#else
#define EIGEN_UNROLL_LOOP _Pragma("unroll")
#endif
#else
#define EIGEN_UNROLL_LOOP
#endif

// Notice: Use this macro with caution. The code in the if body should still
// compile with C++14.
#if defined(EIGEN_HAS_CXX17_IFCONSTEXPR)
#define EIGEN_IF_CONSTEXPR(X) if constexpr (X)
#else
#define EIGEN_IF_CONSTEXPR(X) if (X)
#endif

#endif  // EIGEN_MACROS_H
