boost/math/tools/config.hpp
// Copyright (c) 2006-7 John Maddock // Copyright (c) 2021 Matt Borland // Use, modification and distribution are subject to the // Boost Software License, Version 1.0. (See accompanying file // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) #ifndef BOOST_MATH_TOOLS_CONFIG_HPP #define BOOST_MATH_TOOLS_CONFIG_HPP #ifdef _MSC_VER #pragma once #endif #include <boost/math/tools/is_standalone.hpp> // Minimum language standard transition #ifdef _MSVC_LANG # if _MSVC_LANG < 201402L # pragma warning("The minimum language standard to use Boost.Math will be C++14 starting in July 2023 (Boost 1.82 release)"); # endif #else # if __cplusplus < 201402L # warning "The minimum language standard to use Boost.Math will be C++14 starting in July 2023 (Boost 1.82 release)" # endif #endif #ifndef BOOST_MATH_STANDALONE #include <boost/config.hpp> #else // Things from boost/config that are required, and easy to replicate #define BOOST_PREVENT_MACRO_SUBSTITUTION #define BOOST_MATH_NO_REAL_CONCEPT_TESTS #define BOOST_MATH_NO_DISTRIBUTION_CONCEPT_TESTS #define BOOST_MATH_NO_LEXICAL_CAST // Since Boost.Multiprecision is in active development some tests do not fully cooperate yet. #define BOOST_MATH_NO_MP_TESTS #if (__cplusplus > 201400L || _MSVC_LANG > 201400L) #define BOOST_CXX14_CONSTEXPR constexpr #else #define BOOST_CXX14_CONSTEXPR #define BOOST_NO_CXX14_CONSTEXPR #endif // BOOST_CXX14_CONSTEXPR #if (__cplusplus > 201700L || _MSVC_LANG > 201700L) #define BOOST_IF_CONSTEXPR if constexpr // Clang on mac provides the execution header with none of the functionality. TODO: Check back on this // https://en.cppreference.com/w/cpp/compiler_support "Standardization of Parallelism TS" #if !__has_include(<execution>) || (defined(__APPLE__) && defined(__clang__)) #define BOOST_NO_CXX17_HDR_EXECUTION #endif #else #define BOOST_IF_CONSTEXPR if #define BOOST_NO_CXX17_IF_CONSTEXPR #define BOOST_NO_CXX17_HDR_EXECUTION #endif #if __cpp_lib_gcd_lcm >= 201606L #define BOOST_MATH_HAS_CXX17_NUMERIC #endif #define BOOST_JOIN(X, Y) BOOST_DO_JOIN(X, Y) #define BOOST_DO_JOIN(X, Y) BOOST_DO_JOIN2(X,Y) #define BOOST_DO_JOIN2(X, Y) X##Y #define BOOST_STRINGIZE(X) BOOST_DO_STRINGIZE(X) #define BOOST_DO_STRINGIZE(X) #X #ifdef BOOST_DISABLE_THREADS // No threads, do nothing // Detect thread support via STL implementation #elif defined(__has_include) # if !__has_include(<thread>) || !__has_include(<mutex>) || !__has_include(<future>) || !__has_include(<atomic>) # define BOOST_DISABLE_THREADS # else # define BOOST_HAS_THREADS # endif #else # define BOOST_HAS_THREADS // The default assumption is that the machine has threads #endif // Thread Support #ifdef BOOST_DISABLE_THREADS # define BOOST_NO_CXX11_HDR_ATOMIC # define BOOST_NO_CXX11_HDR_FUTURE # define BOOST_NO_CXX11_HDR_THREAD # define BOOST_NO_CXX11_THREAD_LOCAL #endif // BOOST_DISABLE_THREADS #ifdef __GNUC__ # if !defined(__EXCEPTIONS) && !defined(BOOST_NO_EXCEPTIONS) # define BOOST_NO_EXCEPTIONS # endif // // Make sure we have some std lib headers included so we can detect __GXX_RTTI: // # include <algorithm> // for min and max # include <limits> # ifndef __GXX_RTTI # ifndef BOOST_NO_TYPEID # define BOOST_NO_TYPEID # endif # ifndef BOOST_NO_RTTI # define BOOST_NO_RTTI # endif # endif #endif #if !defined(BOOST_NOINLINE) # if defined(_MSC_VER) # define BOOST_NOINLINE __declspec(noinline) # elif defined(__GNUC__) && __GNUC__ > 3 // Clang also defines __GNUC__ (as 4) # if defined(__CUDACC__) // nvcc doesn't always parse __noinline__, // see: https://svn.boost.org/trac/boost/ticket/9392 # define BOOST_NOINLINE __attribute__ ((noinline)) # elif defined(__HIP__) // See https://github.com/boostorg/config/issues/392 # define BOOST_NOINLINE __attribute__ ((noinline)) # else # define BOOST_NOINLINE __attribute__ ((__noinline__)) # endif # else # define BOOST_NOINLINE # endif #endif #if !defined(BOOST_FORCEINLINE) # if defined(_MSC_VER) # define BOOST_FORCEINLINE __forceinline # elif defined(__GNUC__) && __GNUC__ > 3 // Clang also defines __GNUC__ (as 4) # define BOOST_FORCEINLINE inline __attribute__ ((__always_inline__)) # else # define BOOST_FORCEINLINE inline # endif #endif #endif // BOOST_MATH_STANDALONE // Support compilers with P0024R2 implemented without linking TBB // https://en.cppreference.com/w/cpp/compiler_support #if !defined(BOOST_NO_CXX17_HDR_EXECUTION) && defined(BOOST_HAS_THREADS) # define BOOST_MATH_EXEC_COMPATIBLE #endif // Attributes from C++14 and newer #ifdef __has_cpp_attribute // C++17 #if (__cplusplus >= 201703L || _MSVC_LANG >= 201703L) # if __has_cpp_attribute(maybe_unused) # define BOOST_MATH_MAYBE_UNUSED [[maybe_unused]] # endif #endif #endif // If attributes are not defined make sure we don't have compiler errors #ifndef BOOST_MATH_MAYBE_UNUSED # define BOOST_MATH_MAYBE_UNUSED #endif #include <algorithm> // for min and max #include <limits> #include <cmath> #include <climits> #include <cfloat> #include <boost/math/tools/user.hpp> #if (defined(__NetBSD__) || defined(__EMSCRIPTEN__)\ || (defined(__hppa) && !defined(__OpenBSD__)) || (defined(__NO_LONG_DOUBLE_MATH) && (DBL_MANT_DIG != LDBL_MANT_DIG))) \ && !defined(BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS) //# define BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS #endif #ifdef __IBMCPP__ // // For reasons I don't understand, the tests with IMB's compiler all // pass at long double precision, but fail with real_concept, those tests // are disabled for now. (JM 2012). #ifndef BOOST_MATH_NO_REAL_CONCEPT_TESTS # define BOOST_MATH_NO_REAL_CONCEPT_TESTS #endif // BOOST_MATH_NO_REAL_CONCEPT_TESTS #endif #ifdef sun // Any use of __float128 in program startup code causes a segfault (tested JM 2015, Solaris 11). # define BOOST_MATH_DISABLE_FLOAT128 #endif #ifdef __HAIKU__ // // Not sure what's up with the math detection on Haiku, but linking fails with // float128 code enabled, and we don't have an implementation of __expl, so // disabling long double functions for now as well. # define BOOST_MATH_DISABLE_FLOAT128 # define BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS #endif #if (defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)) && ((LDBL_MANT_DIG == 106) || (__LDBL_MANT_DIG__ == 106)) && !defined(BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS) // // Darwin's rather strange "double double" is rather hard to // support, it should be possible given enough effort though... // # define BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS #endif #if !defined(BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS) && (LDBL_MANT_DIG == 106) && (LDBL_MIN_EXP > DBL_MIN_EXP) // // Generic catch all case for gcc's "double-double" long double type. // We do not support this as it's not even remotely IEEE conforming: // # define BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS #endif #if defined(unix) && defined(__INTEL_COMPILER) && (__INTEL_COMPILER <= 1000) && !defined(BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS) // // Intel compiler prior to version 10 has sporadic problems // calling the long double overloads of the std lib math functions: // calling ::powl is OK, but std::pow(long double, long double) // may segfault depending upon the value of the arguments passed // and the specific Linux distribution. // // We'll be conservative and disable long double support for this compiler. // // Comment out this #define and try building the tests to determine whether // your Intel compiler version has this issue or not. // # define BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS #endif #if defined(unix) && defined(__INTEL_COMPILER) // // Intel compiler has sporadic issues compiling std::fpclassify depending on // the exact OS version used. Use our own code for this as we know it works // well on Intel processors: // #define BOOST_MATH_DISABLE_STD_FPCLASSIFY #endif #if defined(_MSC_VER) && !defined(_WIN32_WCE) // Better safe than sorry, our tests don't support hardware exceptions: # define BOOST_MATH_CONTROL_FP _control87(MCW_EM,MCW_EM) #endif #ifdef __IBMCPP__ # define BOOST_MATH_NO_DEDUCED_FUNCTION_POINTERS #endif #if (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901)) # define BOOST_MATH_USE_C99 #endif #if (defined(__hpux) && !defined(__hppa)) # define BOOST_MATH_USE_C99 #endif #if defined(__GNUC__) && defined(_GLIBCXX_USE_C99) # define BOOST_MATH_USE_C99 #endif #if defined(_LIBCPP_VERSION) && !defined(_MSC_VER) # define BOOST_MATH_USE_C99 #endif #if defined(__CYGWIN__) || defined(__HP_aCC) || defined(__INTEL_COMPILER) \ || defined(BOOST_NO_NATIVE_LONG_DOUBLE_FP_CLASSIFY) \ || (defined(__GNUC__) && !defined(BOOST_MATH_USE_C99))\ || defined(BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS) # define BOOST_MATH_NO_NATIVE_LONG_DOUBLE_FP_CLASSIFY #endif #if defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x590) namespace boost { namespace math { namespace tools { namespace detail { template <typename T> struct type {}; template <typename T, T n> struct non_type {}; }}}} // Namespace boost, math tools, detail # define BOOST_MATH_EXPLICIT_TEMPLATE_TYPE(t) boost::math::tools::detail::type<t>* = 0 # define BOOST_MATH_EXPLICIT_TEMPLATE_TYPE_SPEC(t) boost::math::tools::detail::type<t>* # define BOOST_MATH_EXPLICIT_TEMPLATE_NON_TYPE(t, v) boost::math::tools::detail::non_type<t, v>* = 0 # define BOOST_MATH_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v) boost::math::tools::detail::non_type<t, v>* # define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_TYPE(t) \ , BOOST_MATH_EXPLICIT_TEMPLATE_TYPE(t) # define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_TYPE_SPEC(t) \ , BOOST_MATH_EXPLICIT_TEMPLATE_TYPE_SPEC(t) # define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_NON_TYPE(t, v) \ , BOOST_MATH_EXPLICIT_TEMPLATE_NON_TYPE(t, v) # define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v) \ , BOOST_MATH_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v) #else // no workaround needed: expand to nothing # define BOOST_MATH_EXPLICIT_TEMPLATE_TYPE(t) # define BOOST_MATH_EXPLICIT_TEMPLATE_TYPE_SPEC(t) # define BOOST_MATH_EXPLICIT_TEMPLATE_NON_TYPE(t, v) # define BOOST_MATH_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v) # define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_TYPE(t) # define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_TYPE_SPEC(t) # define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_NON_TYPE(t, v) # define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v) #endif // __SUNPRO_CC #if (defined(__SUNPRO_CC) || defined(__hppa) || defined(__GNUC__)) && !defined(BOOST_MATH_SMALL_CONSTANT) // Sun's compiler emits a hard error if a constant underflows, // as does aCC on PA-RISC, while gcc issues a large number of warnings: # define BOOST_MATH_SMALL_CONSTANT(x) 0.0 #else # define BOOST_MATH_SMALL_CONSTANT(x) x #endif // // Tune performance options for specific compilers: // #ifdef _MSC_VER # define BOOST_MATH_POLY_METHOD 2 #if _MSC_VER <= 1900 # define BOOST_MATH_RATIONAL_METHOD 1 #else # define BOOST_MATH_RATIONAL_METHOD 2 #endif #if _MSC_VER > 1900 # define BOOST_MATH_INT_TABLE_TYPE(RT, IT) RT # define BOOST_MATH_INT_VALUE_SUFFIX(RV, SUF) RV##.0L #endif #elif defined(__INTEL_COMPILER) # define BOOST_MATH_POLY_METHOD 2 # define BOOST_MATH_RATIONAL_METHOD 1 #elif defined(__GNUC__) #if __GNUC__ < 4 # define BOOST_MATH_POLY_METHOD 3 # define BOOST_MATH_RATIONAL_METHOD 3 # define BOOST_MATH_INT_TABLE_TYPE(RT, IT) RT # define BOOST_MATH_INT_VALUE_SUFFIX(RV, SUF) RV##.0L #else # define BOOST_MATH_POLY_METHOD 3 # define BOOST_MATH_RATIONAL_METHOD 3 #endif #elif defined(__clang__) #if __clang__ > 6 # define BOOST_MATH_POLY_METHOD 3 # define BOOST_MATH_RATIONAL_METHOD 3 # define BOOST_MATH_INT_TABLE_TYPE(RT, IT) RT # define BOOST_MATH_INT_VALUE_SUFFIX(RV, SUF) RV##.0L #endif #endif // // noexcept support: // #include <type_traits> #define BOOST_MATH_NOEXCEPT(T) noexcept(std::is_floating_point<T>::value) #define BOOST_MATH_IS_FLOAT(T) (std::is_floating_point<T>::value) // // The maximum order of polynomial that will be evaluated // via an unrolled specialisation: // #ifndef BOOST_MATH_MAX_POLY_ORDER # define BOOST_MATH_MAX_POLY_ORDER 20 #endif // // Set the method used to evaluate polynomials and rationals: // #ifndef BOOST_MATH_POLY_METHOD # define BOOST_MATH_POLY_METHOD 2 #endif #ifndef BOOST_MATH_RATIONAL_METHOD # define BOOST_MATH_RATIONAL_METHOD 1 #endif // // decide whether to store constants as integers or reals: // #ifndef BOOST_MATH_INT_TABLE_TYPE # define BOOST_MATH_INT_TABLE_TYPE(RT, IT) IT #endif #ifndef BOOST_MATH_INT_VALUE_SUFFIX # define BOOST_MATH_INT_VALUE_SUFFIX(RV, SUF) RV##SUF #endif // // And then the actual configuration: // #if defined(BOOST_MATH_STANDALONE) && defined(_GLIBCXX_USE_FLOAT128) && defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__) && !defined(__STRICT_ANSI__) \ && !defined(BOOST_MATH_DISABLE_FLOAT128) && !defined(BOOST_MATH_USE_FLOAT128) # define BOOST_MATH_USE_FLOAT128 #elif defined(BOOST_HAS_FLOAT128) && !defined(BOOST_MATH_USE_FLOAT128) # define BOOST_MATH_USE_FLOAT128 #endif #ifdef BOOST_MATH_USE_FLOAT128 // // Only enable this when the compiler really is GCC as clang and probably // intel too don't support __float128 yet :-( // # if defined(__INTEL_COMPILER) && defined(__GNUC__) # if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) # define BOOST_MATH_FLOAT128_TYPE __float128 # endif # elif defined(__GNUC__) # define BOOST_MATH_FLOAT128_TYPE __float128 # endif # ifndef BOOST_MATH_FLOAT128_TYPE # define BOOST_MATH_FLOAT128_TYPE _Quad # endif #endif // // Check for WinCE with no iostream support: // #if defined(_WIN32_WCE) && !defined(__SGI_STL_PORT) # define BOOST_MATH_NO_LEXICAL_CAST #endif // // Helper macro for controlling the FP behaviour: // #ifndef BOOST_MATH_CONTROL_FP # define BOOST_MATH_CONTROL_FP #endif // // Helper macro for using statements: // #define BOOST_MATH_STD_USING_CORE \ using std::abs;\ using std::acos;\ using std::cos;\ using std::fmod;\ using std::modf;\ using std::tan;\ using std::asin;\ using std::cosh;\ using std::frexp;\ using std::pow;\ using std::tanh;\ using std::atan;\ using std::exp;\ using std::ldexp;\ using std::sin;\ using std::atan2;\ using std::fabs;\ using std::log;\ using std::sinh;\ using std::ceil;\ using std::floor;\ using std::log10;\ using std::sqrt; #define BOOST_MATH_STD_USING BOOST_MATH_STD_USING_CORE namespace boost{ namespace math{ namespace tools { template <class T> inline T max BOOST_PREVENT_MACRO_SUBSTITUTION(T a, T b, T c) BOOST_MATH_NOEXCEPT(T) { return (std::max)((std::max)(a, b), c); } template <class T> inline T max BOOST_PREVENT_MACRO_SUBSTITUTION(T a, T b, T c, T d) BOOST_MATH_NOEXCEPT(T) { return (std::max)((std::max)(a, b), (std::max)(c, d)); } } // namespace tools template <class T> void suppress_unused_variable_warning(const T&) BOOST_MATH_NOEXCEPT(T) { } namespace detail{ template <class T> struct is_integer_for_rounding { static constexpr bool value = std::is_integral<T>::value || (std::numeric_limits<T>::is_specialized && std::numeric_limits<T>::is_integer); }; } }} // namespace boost namespace math #ifdef __GLIBC_PREREQ # if __GLIBC_PREREQ(2,14) # define BOOST_MATH_HAVE_FIXED_GLIBC # endif #endif #if ((defined(__linux__) && !defined(__UCLIBC__) && !defined(BOOST_MATH_HAVE_FIXED_GLIBC)) || defined(__QNX__) || defined(__IBMCPP__)) // // This code was introduced in response to this glibc bug: http://sourceware.org/bugzilla/show_bug.cgi?id=2445 // Basically powl and expl can return garbage when the result is small and certain exception flags are set // on entrance to these functions. This appears to have been fixed in Glibc 2.14 (May 2011). // Much more information in this message thread: https://groups.google.com/forum/#!topic/boost-list/ZT99wtIFlb4 // #include <cfenv> # ifdef FE_ALL_EXCEPT namespace boost{ namespace math{ namespace detail { struct fpu_guard { fpu_guard() { fegetexceptflag(&m_flags, FE_ALL_EXCEPT); feclearexcept(FE_ALL_EXCEPT); } ~fpu_guard() { fesetexceptflag(&m_flags, FE_ALL_EXCEPT); } private: fexcept_t m_flags; }; } // namespace detail }} // namespaces # define BOOST_FPU_EXCEPTION_GUARD boost::math::detail::fpu_guard local_guard_object; # define BOOST_MATH_INSTRUMENT_FPU do{ fexcept_t cpu_flags; fegetexceptflag(&cpu_flags, FE_ALL_EXCEPT); BOOST_MATH_INSTRUMENT_VARIABLE(cpu_flags); } while(0); # else # define BOOST_FPU_EXCEPTION_GUARD # define BOOST_MATH_INSTRUMENT_FPU # endif #else // All other platforms. # define BOOST_FPU_EXCEPTION_GUARD # define BOOST_MATH_INSTRUMENT_FPU #endif #ifdef BOOST_MATH_INSTRUMENT # include <iostream> # include <iomanip> # include <typeinfo> # define BOOST_MATH_INSTRUMENT_CODE(x) \ std::cout << std::setprecision(35) << __FILE__ << ":" << __LINE__ << " " << x << std::endl; # define BOOST_MATH_INSTRUMENT_VARIABLE(name) BOOST_MATH_INSTRUMENT_CODE(#name << " = " << name) #else # define BOOST_MATH_INSTRUMENT_CODE(x) # define BOOST_MATH_INSTRUMENT_VARIABLE(name) #endif // // Thread local storage: // #ifndef BOOST_DISABLE_THREADS # define BOOST_MATH_THREAD_LOCAL thread_local #else # define BOOST_MATH_THREAD_LOCAL #endif // // Some mingw flavours have issues with thread_local and types with non-trivial destructors // See https://sourceforge.net/p/mingw-w64/bugs/527/ // #if (defined(__MINGW32__) && (__GNUC__ < 9) && !defined(__clang__)) # define BOOST_MATH_NO_THREAD_LOCAL_WITH_NON_TRIVIAL_TYPES #endif // // Can we have constexpr tables? // #if (!defined(BOOST_NO_CXX14_CONSTEXPR)) || (defined(_MSC_VER) && _MSC_VER >= 1910) #define BOOST_MATH_HAVE_CONSTEXPR_TABLES #define BOOST_MATH_CONSTEXPR_TABLE_FUNCTION constexpr #else #define BOOST_MATH_CONSTEXPR_TABLE_FUNCTION #endif #endif // BOOST_MATH_TOOLS_CONFIG_HPP