ceph/src/boost/boost/math/tools/config.hpp

   1 //  Copyright (c) 2006-7 John Maddock
   2 //  Use, modification and distribution are subject to the
   3 //  Boost Software License, Version 1.0. (See accompanying file
   4 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #ifndef BOOST_MATH_TOOLS_CONFIG_HPP
   7 #define BOOST_MATH_TOOLS_CONFIG_HPP
   8
   9 #ifdef _MSC_VER
  10 #pragma once
  11 #endif
  12
  13 #include <boost/config.hpp>
  14 #include <boost/predef/architecture/x86.h>
  15 #include <boost/cstdint.hpp> // for boost::uintmax_t
  16 #include <boost/detail/workaround.hpp>
  17 #include <boost/type_traits/is_integral.hpp>
  18 #include <algorithm>  // for min and max
  19 #include <boost/config/no_tr1/cmath.hpp>
  20 #include <climits>
  21 #include <cfloat>
  22 #if (defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__))
  23 #  include <math.h>
  24 #endif
  25 #ifndef BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
  26 #  include <limits>
  27 #endif
  28
  29 #include <boost/math/tools/user.hpp>
  30
  31 #if (defined(__CYGWIN__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__EMSCRIPTEN__)\
  32    || (defined(__hppa) && !defined(__OpenBSD__)) || (defined(__NO_LONG_DOUBLE_MATH) && (DBL_MANT_DIG != LDBL_MANT_DIG))) \
  33    && !defined(BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS)
  34 #  define BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
  35 #endif
  36 #if BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x582))
  37 //
  38 // Borland post 5.8.2 uses Dinkumware's std C lib which
  39 // doesn't have true long double precision.  Earlier
  40 // versions are problematic too:
  41 //
  42 #  define BOOST_MATH_NO_REAL_CONCEPT_TESTS
  43 #  define BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
  44 #  define BOOST_MATH_CONTROL_FP _control87(MCW_EM,MCW_EM)
  45 #  include <float.h>
  46 #endif
  47 #ifdef __IBMCPP__
  48 //
  49 // For reasons I don't understand, the tests with IMB's compiler all
  50 // pass at long double precision, but fail with real_concept, those tests
  51 // are disabled for now.  (JM 2012).
  52 #  define BOOST_MATH_NO_REAL_CONCEPT_TESTS
  53 #endif
  54 #ifdef sun
  55 // Any use of __float128 in program startup code causes a segfault  (tested JM 2015, Solaris 11).
  56 #  define BOOST_MATH_DISABLE_FLOAT128
  57 #endif
  58 #ifdef __HAIKU__
  59 //
  60 // Not sure what's up with the math detection on Haiku, but linking fails with
  61 // float128 code enabled, and we don't have an implementation of __expl, so
  62 // disabling long double functions for now as well.
  63 #  define BOOST_MATH_DISABLE_FLOAT128
  64 #  define BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
  65 #endif
  66 #if (defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)) && ((LDBL_MANT_DIG == 106) || (__LDBL_MANT_DIG__ == 106)) && !defined(BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS)
  67 //
  68 // Darwin's rather strange "double double" is rather hard to
  69 // support, it should be possible given enough effort though...
  70 //
  71 #  define BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
  72 #endif
  73 #if defined(unix) && defined(__INTEL_COMPILER) && (__INTEL_COMPILER <= 1000) && !defined(BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS)
  74 //
  75 // Intel compiler prior to version 10 has sporadic problems
  76 // calling the long double overloads of the std lib math functions:
  77 // calling ::powl is OK, but std::pow(long double, long double)
  78 // may segfault depending upon the value of the arguments passed
  79 // and the specific Linux distribution.
  80 //
  81 // We'll be conservative and disable long double support for this compiler.
  82 //
  83 // Comment out this #define and try building the tests to determine whether
  84 // your Intel compiler version has this issue or not.
  85 //
  86 #  define BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
  87 #endif
  88 #if defined(unix) && defined(__INTEL_COMPILER)
  89 //
  90 // Intel compiler has sporadic issues compiling std::fpclassify depending on
  91 // the exact OS version used.  Use our own code for this as we know it works
  92 // well on Intel processors:
  93 //
  94 #define BOOST_MATH_DISABLE_STD_FPCLASSIFY
  95 #endif
  96
  97 #if defined(BOOST_MSVC) && !defined(_WIN32_WCE)
  98    // Better safe than sorry, our tests don't support hardware exceptions:
  99 #  define BOOST_MATH_CONTROL_FP _control87(MCW_EM,MCW_EM)
 100 #endif
 101
 102 #ifdef __IBMCPP__
 103 #  define BOOST_MATH_NO_DEDUCED_FUNCTION_POINTERS
 104 #endif
 105
 106 #if (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901))
 107 #  define BOOST_MATH_USE_C99
 108 #endif
 109
 110 #if (defined(__hpux) && !defined(__hppa))
 111 #  define BOOST_MATH_USE_C99
 112 #endif
 113
 114 #if defined(__GNUC__) && defined(_GLIBCXX_USE_C99)
 115 #  define BOOST_MATH_USE_C99
 116 #endif
 117
 118 #if defined(_LIBCPP_VERSION) && !defined(_MSC_VER)
 119 #  define BOOST_MATH_USE_C99
 120 #endif
 121
 122 #if defined(__CYGWIN__) || defined(__HP_aCC) || defined(BOOST_INTEL) \
 123   || defined(BOOST_NO_NATIVE_LONG_DOUBLE_FP_CLASSIFY) \
 124   || (defined(__GNUC__) && !defined(BOOST_MATH_USE_C99))\
 125   || defined(BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS)
 126 #  define BOOST_MATH_NO_NATIVE_LONG_DOUBLE_FP_CLASSIFY
 127 #endif
 128
 129 #if BOOST_WORKAROUND(__SUNPRO_CC, <= 0x590)
 130
 131 #  include "boost/type.hpp"
 132 #  include "boost/non_type.hpp"
 133
 134 #  define BOOST_MATH_EXPLICIT_TEMPLATE_TYPE(t)         boost::type<t>* = 0
 135 #  define BOOST_MATH_EXPLICIT_TEMPLATE_TYPE_SPEC(t)    boost::type<t>*
 136 #  define BOOST_MATH_EXPLICIT_TEMPLATE_NON_TYPE(t, v)  boost::non_type<t, v>* = 0
 137 #  define BOOST_MATH_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)  boost::non_type<t, v>*
 138
 139 #  define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_TYPE(t)         \
 140              , BOOST_MATH_EXPLICIT_TEMPLATE_TYPE(t)
 141 #  define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_TYPE_SPEC(t)    \
 142              , BOOST_MATH_EXPLICIT_TEMPLATE_TYPE_SPEC(t)
 143 #  define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_NON_TYPE(t, v)  \
 144              , BOOST_MATH_EXPLICIT_TEMPLATE_NON_TYPE(t, v)
 145 #  define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)  \
 146              , BOOST_MATH_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)
 147
 148 #else
 149
 150 // no workaround needed: expand to nothing
 151
 152 #  define BOOST_MATH_EXPLICIT_TEMPLATE_TYPE(t)
 153 #  define BOOST_MATH_EXPLICIT_TEMPLATE_TYPE_SPEC(t)
 154 #  define BOOST_MATH_EXPLICIT_TEMPLATE_NON_TYPE(t, v)
 155 #  define BOOST_MATH_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)
 156
 157 #  define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_TYPE(t)
 158 #  define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_TYPE_SPEC(t)
 159 #  define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_NON_TYPE(t, v)
 160 #  define BOOST_MATH_APPEND_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)
 161
 162
 163 #endif // __SUNPRO_CC
 164
 165 #if (defined(__SUNPRO_CC) || defined(__hppa) || defined(__GNUC__)) && !defined(BOOST_MATH_SMALL_CONSTANT)
 166 // Sun's compiler emits a hard error if a constant underflows,
 167 // as does aCC on PA-RISC, while gcc issues a large number of warnings:
 168 #  define BOOST_MATH_SMALL_CONSTANT(x) 0.0
 169 #else
 170 #  define BOOST_MATH_SMALL_CONSTANT(x) x
 171 #endif
 172
 173
 174 #if BOOST_WORKAROUND(BOOST_MSVC, < 1400)
 175 //
 176 // Define if constants too large for a float cause "bad"
 177 // values to be stored in the data, rather than infinity
 178 // or a suitably large value.
 179 //
 180 #  define BOOST_MATH_BUGGY_LARGE_FLOAT_CONSTANTS
 181 #endif
 182 //
 183 // Tune performance options for specific compilers:
 184 //
 185 #ifdef BOOST_MSVC
 186 #  define BOOST_MATH_POLY_METHOD 2
 187 #if BOOST_MSVC <= 1900
 188 #  define BOOST_MATH_RATIONAL_METHOD 1
 189 #else
 190 #  define BOOST_MATH_RATIONAL_METHOD 2
 191 #endif
 192 #if BOOST_MSVC > 1900
 193 #  define BOOST_MATH_INT_TABLE_TYPE(RT, IT) RT
 194 #  define BOOST_MATH_INT_VALUE_SUFFIX(RV, SUF) RV##.0L
 195 #endif
 196
 197 #elif defined(BOOST_INTEL)
 198 #  define BOOST_MATH_POLY_METHOD 2
 199 #  define BOOST_MATH_RATIONAL_METHOD 1
 200
 201 #elif defined(__GNUC__)
 202 #if __GNUC__ < 4
 203 #  define BOOST_MATH_POLY_METHOD 3
 204 #  define BOOST_MATH_RATIONAL_METHOD 3
 205 #  define BOOST_MATH_INT_TABLE_TYPE(RT, IT) RT
 206 #  define BOOST_MATH_INT_VALUE_SUFFIX(RV, SUF) RV##.0L
 207 #else
 208 #  define BOOST_MATH_POLY_METHOD 3
 209 #  define BOOST_MATH_RATIONAL_METHOD 3
 210 #endif
 211
 212 #elif defined(__clang__)
 213
 214 #if __clang__ > 6
 215 #  define BOOST_MATH_POLY_METHOD 3
 216 #  define BOOST_MATH_RATIONAL_METHOD 3
 217 #  define BOOST_MATH_INT_TABLE_TYPE(RT, IT) RT
 218 #  define BOOST_MATH_INT_VALUE_SUFFIX(RV, SUF) RV##.0L
 219 #endif
 220
 221 #endif
 222
 223 #if defined(BOOST_NO_LONG_LONG) && !defined(BOOST_MATH_INT_TABLE_TYPE)
 224 #  define BOOST_MATH_INT_TABLE_TYPE(RT, IT) RT
 225 #  define BOOST_MATH_INT_VALUE_SUFFIX(RV, SUF) RV##.0L
 226 #endif
 227
 228 //
 229 // constexpr support, early GCC implementations can't cope so disable
 230 // constexpr for them:
 231 //
 232 #if !defined(__clang__) && defined(__GNUC__)
 233 #if (__GNUC__ * 100 + __GNUC_MINOR__) < 490
 234 #  define BOOST_MATH_DISABLE_CONSTEXPR
 235 #endif
 236 #endif
 237
 238 #ifdef BOOST_MATH_DISABLE_CONSTEXPR
 239 #  define BOOST_MATH_CONSTEXPR
 240 #else
 241 #  define BOOST_MATH_CONSTEXPR BOOST_CONSTEXPR
 242 #endif
 243
 244 //
 245 // noexcept support:
 246 //
 247 #ifndef BOOST_NO_CXX11_NOEXCEPT
 248 #ifndef BOOST_NO_CXX11_HDR_TYPE_TRAITS
 249 #include <type_traits>
 250 #  define BOOST_MATH_NOEXCEPT(T) noexcept(std::is_floating_point<T>::value)
 251 #  define BOOST_MATH_IS_FLOAT(T) (std::is_floating_point<T>::value)
 252 #else
 253 #include <boost/type_traits/is_floating_point.hpp>
 254 #  define BOOST_MATH_NOEXCEPT(T) noexcept(boost::is_floating_point<T>::value)
 255 #  define BOOST_MATH_IS_FLOAT(T) (boost::is_floating_point<T>::value)
 256 #endif
 257 #else
 258 #  define BOOST_MATH_NOEXCEPT(T)
 259 #  define BOOST_MATH_IS_FLOAT(T) false
 260 #endif
 261
 262 //
 263 // The maximum order of polynomial that will be evaluated
 264 // via an unrolled specialisation:
 265 //
 266 #ifndef BOOST_MATH_MAX_POLY_ORDER
 267 #  define BOOST_MATH_MAX_POLY_ORDER 20
 268 #endif
 269 //
 270 // Set the method used to evaluate polynomials and rationals:
 271 //
 272 #ifndef BOOST_MATH_POLY_METHOD
 273 #  define BOOST_MATH_POLY_METHOD 2
 274 #endif
 275 #ifndef BOOST_MATH_RATIONAL_METHOD
 276 #  define BOOST_MATH_RATIONAL_METHOD 1
 277 #endif
 278 //
 279 // decide whether to store constants as integers or reals:
 280 //
 281 #ifndef BOOST_MATH_INT_TABLE_TYPE
 282 #  define BOOST_MATH_INT_TABLE_TYPE(RT, IT) IT
 283 #endif
 284 #ifndef BOOST_MATH_INT_VALUE_SUFFIX
 285 #  define BOOST_MATH_INT_VALUE_SUFFIX(RV, SUF) RV##SUF
 286 #endif
 287 //
 288 // And then the actual configuration:
 289 //
 290 #if defined(_GLIBCXX_USE_FLOAT128) && defined(BOOST_GCC) && !defined(__STRICT_ANSI__) \
 291    && !defined(BOOST_MATH_DISABLE_FLOAT128) || defined(BOOST_MATH_USE_FLOAT128)
 292 //
 293 // Only enable this when the compiler really is GCC as clang and probably
 294 // intel too don't support __float128 yet :-(
 295 //
 296 #ifndef BOOST_MATH_USE_FLOAT128
 297 #  define BOOST_MATH_USE_FLOAT128
 298 #endif
 299
 300 #  if defined(BOOST_INTEL) && defined(BOOST_INTEL_CXX_VERSION) && (BOOST_INTEL_CXX_VERSION >= 1310) && defined(__GNUC__)
 301 #    if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6))
 302 #      define BOOST_MATH_FLOAT128_TYPE __float128
 303 #    endif
 304 #  elif defined(__GNUC__)
 305 #      define BOOST_MATH_FLOAT128_TYPE __float128
 306 #  endif
 307
 308 #  ifndef BOOST_MATH_FLOAT128_TYPE
 309 #      define BOOST_MATH_FLOAT128_TYPE _Quad
 310 #  endif
 311 #endif
 312 //
 313 // Check for WinCE with no iostream support:
 314 //
 315 #if defined(_WIN32_WCE) && !defined(__SGI_STL_PORT)
 316 #  define BOOST_MATH_NO_LEXICAL_CAST
 317 #endif
 318
 319 //
 320 // Helper macro for controlling the FP behaviour:
 321 //
 322 #ifndef BOOST_MATH_CONTROL_FP
 323 #  define BOOST_MATH_CONTROL_FP
 324 #endif
 325 //
 326 // Helper macro for using statements:
 327 //
 328 #define BOOST_MATH_STD_USING_CORE \
 329    using std::abs;\
 330    using std::acos;\
 331    using std::cos;\
 332    using std::fmod;\
 333    using std::modf;\
 334    using std::tan;\
 335    using std::asin;\
 336    using std::cosh;\
 337    using std::frexp;\
 338    using std::pow;\
 339    using std::tanh;\
 340    using std::atan;\
 341    using std::exp;\
 342    using std::ldexp;\
 343    using std::sin;\
 344    using std::atan2;\
 345    using std::fabs;\
 346    using std::log;\
 347    using std::sinh;\
 348    using std::ceil;\
 349    using std::floor;\
 350    using std::log10;\
 351    using std::sqrt;
 352
 353 #define BOOST_MATH_STD_USING BOOST_MATH_STD_USING_CORE
 354
 355 namespace boost{ namespace math{
 356 namespace tools
 357 {
 358
 359 template <class T>
 360 inline T max BOOST_PREVENT_MACRO_SUBSTITUTION(T a, T b, T c) BOOST_MATH_NOEXCEPT(T)
 361 {
 362    return (std::max)((std::max)(a, b), c);
 363 }
 364
 365 template <class T>
 366 inline T max BOOST_PREVENT_MACRO_SUBSTITUTION(T a, T b, T c, T d) BOOST_MATH_NOEXCEPT(T)
 367 {
 368    return (std::max)((std::max)(a, b), (std::max)(c, d));
 369 }
 370
 371 } // namespace tools
 372
 373 template <class T>
 374 void suppress_unused_variable_warning(const T&) BOOST_MATH_NOEXCEPT(T)
 375 {
 376 }
 377
 378 namespace detail{
 379
 380 template <class T>
 381 struct is_integer_for_rounding
 382 {
 383    static const bool value = boost::is_integral<T>::value
 384 #ifndef BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
 385       || (std::numeric_limits<T>::is_specialized && std::numeric_limits<T>::is_integer)
 386 #endif
 387       ;
 388 };
 389
 390 }
 391
 392 }} // namespace boost namespace math
 393
 394 #ifdef __GLIBC_PREREQ
 395 #  if __GLIBC_PREREQ(2,14)
 396 #     define BOOST_MATH_HAVE_FIXED_GLIBC
 397 #  endif
 398 #endif
 399
 400 #if ((defined(__linux__) && !defined(__UCLIBC__) && !defined(BOOST_MATH_HAVE_FIXED_GLIBC)) || defined(__QNX__) || defined(__IBMCPP__)) && !defined(BOOST_NO_FENV_H)
 401 //
 402 // This code was introduced in response to this glibc bug: http://sourceware.org/bugzilla/show_bug.cgi?id=2445
 403 // Basically powl and expl can return garbage when the result is small and certain exception flags are set
 404 // on entrance to these functions.  This appears to have been fixed in Glibc 2.14 (May 2011).
 405 // Much more information in this message thread: https://groups.google.com/forum/#!topic/boost-list/ZT99wtIFlb4
 406 //
 407
 408    #include <boost/detail/fenv.hpp>
 409
 410 #  ifdef FE_ALL_EXCEPT
 411
 412 namespace boost{ namespace math{
 413    namespace detail
 414    {
 415    struct fpu_guard
 416    {
 417       fpu_guard()
 418       {
 419          fegetexceptflag(&m_flags, FE_ALL_EXCEPT);
 420          feclearexcept(FE_ALL_EXCEPT);
 421       }
 422       ~fpu_guard()
 423       {
 424          fesetexceptflag(&m_flags, FE_ALL_EXCEPT);
 425       }
 426    private:
 427       fexcept_t m_flags;
 428    };
 429
 430    } // namespace detail
 431    }} // namespaces
 432
 433 #    define BOOST_FPU_EXCEPTION_GUARD boost::math::detail::fpu_guard local_guard_object;
 434 #    define BOOST_MATH_INSTRUMENT_FPU do{ fexcept_t cpu_flags; fegetexceptflag(&cpu_flags, FE_ALL_EXCEPT); BOOST_MATH_INSTRUMENT_VARIABLE(cpu_flags); } while(0);
 435
 436 #  else
 437
 438 #    define BOOST_FPU_EXCEPTION_GUARD
 439 #    define BOOST_MATH_INSTRUMENT_FPU
 440
 441 #  endif
 442
 443 #else // All other platforms.
 444 #  define BOOST_FPU_EXCEPTION_GUARD
 445 #  define BOOST_MATH_INSTRUMENT_FPU
 446 #endif
 447
 448 #ifdef BOOST_MATH_INSTRUMENT
 449
 450 #  include <iostream>
 451 #  include <iomanip>
 452 #  include <typeinfo>
 453
 454 #  define BOOST_MATH_INSTRUMENT_CODE(x) \
 455       std::cout << std::setprecision(35) << __FILE__ << ":" << __LINE__ << " " << x << std::endl;
 456 #  define BOOST_MATH_INSTRUMENT_VARIABLE(name) BOOST_MATH_INSTRUMENT_CODE(BOOST_STRINGIZE(name) << " = " << name)
 457
 458 #else
 459
 460 #  define BOOST_MATH_INSTRUMENT_CODE(x)
 461 #  define BOOST_MATH_INSTRUMENT_VARIABLE(name)
 462
 463 #endif
 464
 465 //
 466 // Thread local storage:
 467 //
 468 #if !defined(BOOST_NO_CXX11_THREAD_LOCAL) && !defined(BOOST_INTEL)
 469 #  define BOOST_MATH_THREAD_LOCAL thread_local
 470 #else
 471 #  define BOOST_MATH_THREAD_LOCAL
 472 #endif
 473
 474 //
 475 // Can we have constexpr tables?
 476 //
 477 #if (!defined(BOOST_NO_CXX11_HDR_ARRAY) && !defined(BOOST_NO_CXX14_CONSTEXPR)) || BOOST_WORKAROUND(BOOST_MSVC, >= 1910)
 478 #define BOOST_MATH_HAVE_CONSTEXPR_TABLES
 479 #define BOOST_MATH_CONSTEXPR_TABLE_FUNCTION constexpr
 480 #else
 481 #define BOOST_MATH_CONSTEXPR_TABLE_FUNCTION
 482 #endif
 483
 484
 485 #endif // BOOST_MATH_TOOLS_CONFIG_HPP
 486
 487
 488
 489