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