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  1. //  (C) Copyright John Maddock 2001 - 2003.
  2. //  (C) Copyright Darin Adler 2001 - 2002.
  3. //  (C) Copyright Jens Maurer 2001 - 2002.
  4. //  (C) Copyright Beman Dawes 2001 - 2003.
  5. //  (C) Copyright Douglas Gregor 2002.
  6. //  (C) Copyright David Abrahams 2002 - 2003.
  7. //  (C) Copyright Synge Todo 2003.
  8. //  Use, modification and distribution are subject to the
  9. //  Boost Software License, Version 1.0. (See accompanying file
  10. //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  11.  
  12. //  See http://www.boost.org for most recent version.
  13.  
  14. //  GNU C++ compiler setup.
  15.  
  16. //
  17. // Define BOOST_GCC so we know this is "real" GCC and not some pretender:
  18. //
  19. #define BOOST_GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
  20. #if !defined(__CUDACC__)
  21. #define BOOST_GCC BOOST_GCC_VERSION
  22. #endif
  23.  
  24. #if defined(__GXX_EXPERIMENTAL_CXX0X__) || (__cplusplus >= 201103L)
  25. #  define BOOST_GCC_CXX11
  26. #endif
  27.  
  28. #if __GNUC__ == 3
  29. #  if defined (__PATHSCALE__)
  30. #     define BOOST_NO_TWO_PHASE_NAME_LOOKUP
  31. #     define BOOST_NO_IS_ABSTRACT
  32. #  endif
  33.  
  34. #  if __GNUC_MINOR__ < 4
  35. #     define BOOST_NO_IS_ABSTRACT
  36. #  endif
  37. #  define BOOST_NO_CXX11_EXTERN_TEMPLATE
  38. #endif
  39. #if __GNUC__ < 4
  40. //
  41. // All problems to gcc-3.x and earlier here:
  42. //
  43. #define BOOST_NO_TWO_PHASE_NAME_LOOKUP
  44. #  ifdef __OPEN64__
  45. #     define BOOST_NO_IS_ABSTRACT
  46. #  endif
  47. #endif
  48.  
  49. // GCC prior to 3.4 had #pragma once too but it didn't work well with filesystem links
  50. #if BOOST_GCC_VERSION >= 30400
  51. #define BOOST_HAS_PRAGMA_ONCE
  52. #endif
  53.  
  54. #if BOOST_GCC_VERSION < 40400
  55. // Previous versions of GCC did not completely implement value-initialization:
  56. // GCC Bug 30111, "Value-initialization of POD base class doesn't initialize
  57. // members", reported by Jonathan Wakely in 2006,
  58. // http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30111 (fixed for GCC 4.4)
  59. // GCC Bug 33916, "Default constructor fails to initialize array members",
  60. // reported by Michael Elizabeth Chastain in 2007,
  61. // http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33916 (fixed for GCC 4.2.4)
  62. // See also: http://www.boost.org/libs/utility/value_init.htm#compiler_issues
  63. #define BOOST_NO_COMPLETE_VALUE_INITIALIZATION
  64. #endif
  65.  
  66. #if !defined(__EXCEPTIONS) && !defined(BOOST_NO_EXCEPTIONS)
  67. # define BOOST_NO_EXCEPTIONS
  68. #endif
  69.  
  70.  
  71. //
  72. // Threading support: Turn this on unconditionally here (except for
  73. // those platforms where we can know for sure). It will get turned off again
  74. // later if no threading API is detected.
  75. //
  76. #if !defined(__MINGW32__) && !defined(linux) && !defined(__linux) && !defined(__linux__)
  77. # define BOOST_HAS_THREADS
  78. #endif
  79.  
  80. //
  81. // gcc has "long long"
  82. // Except on Darwin with standard compliance enabled (-pedantic)
  83. // Apple gcc helpfully defines this macro we can query
  84. //
  85. #if !defined(__DARWIN_NO_LONG_LONG)
  86. # define BOOST_HAS_LONG_LONG
  87. #endif
  88.  
  89. //
  90. // gcc implements the named return value optimization since version 3.1
  91. //
  92. #define BOOST_HAS_NRVO
  93.  
  94. // Branch prediction hints
  95. #define BOOST_LIKELY(x) __builtin_expect(x, 1)
  96. #define BOOST_UNLIKELY(x) __builtin_expect(x, 0)
  97.  
  98. //
  99. // Dynamic shared object (DSO) and dynamic-link library (DLL) support
  100. //
  101. #if __GNUC__ >= 4
  102. #  if (defined(_WIN32) || defined(__WIN32__) || defined(WIN32)) && !defined(__CYGWIN__)
  103.      // All Win32 development environments, including 64-bit Windows and MinGW, define
  104.      // _WIN32 or one of its variant spellings. Note that Cygwin is a POSIX environment,
  105.      // so does not define _WIN32 or its variants.
  106. #    define BOOST_HAS_DECLSPEC
  107. #    define BOOST_SYMBOL_EXPORT __attribute__((__dllexport__))
  108. #    define BOOST_SYMBOL_IMPORT __attribute__((__dllimport__))
  109. #  else
  110. #    define BOOST_SYMBOL_EXPORT __attribute__((__visibility__("default")))
  111. #    define BOOST_SYMBOL_IMPORT
  112. #  endif
  113. #  define BOOST_SYMBOL_VISIBLE __attribute__((__visibility__("default")))
  114. #else
  115. // config/platform/win32.hpp will define BOOST_SYMBOL_EXPORT, etc., unless already defined
  116. #  define BOOST_SYMBOL_EXPORT
  117. #endif
  118.  
  119. //
  120. // RTTI and typeinfo detection is possible post gcc-4.3:
  121. //
  122. #if BOOST_GCC_VERSION > 40300
  123. #  ifndef __GXX_RTTI
  124. #     ifndef BOOST_NO_TYPEID
  125. #        define BOOST_NO_TYPEID
  126. #     endif
  127. #     ifndef BOOST_NO_RTTI
  128. #        define BOOST_NO_RTTI
  129. #     endif
  130. #  endif
  131. #endif
  132.  
  133. //
  134. // Recent GCC versions have __int128 when in 64-bit mode.
  135. //
  136. // We disable this if the compiler is really nvcc as it
  137. // doesn't actually support __int128 as of CUDA_VERSION=5000
  138. // even though it defines __SIZEOF_INT128__.
  139. // See https://svn.boost.org/trac/boost/ticket/8048
  140. // Only re-enable this for nvcc if you're absolutely sure
  141. // of the circumstances under which it's supported:
  142. //
  143. #if defined(__SIZEOF_INT128__) && !defined(__CUDACC__)
  144. #  define BOOST_HAS_INT128
  145. #endif
  146. //
  147. // Recent GCC versions have a __float128 native type, we need to
  148. // include a std lib header to detect this - not ideal, but we'll
  149. // be including <cstddef> later anyway when we select the std lib.
  150. //
  151. #ifdef __cplusplus
  152. #include <cstddef>
  153. #else
  154. #include <stddef.h>
  155. #endif
  156. #if defined(_GLIBCXX_USE_FLOAT128) && !defined(__STRICT_ANSI__)
  157. # define BOOST_HAS_FLOAT128
  158. #endif
  159.  
  160. // C++0x features in 4.3.n and later
  161. //
  162. #if (BOOST_GCC_VERSION >= 40300) && defined(BOOST_GCC_CXX11)
  163. // C++0x features are only enabled when -std=c++0x or -std=gnu++0x are
  164. // passed on the command line, which in turn defines
  165. // __GXX_EXPERIMENTAL_CXX0X__.
  166. #  define BOOST_HAS_DECLTYPE
  167. #  define BOOST_HAS_RVALUE_REFS
  168. #  define BOOST_HAS_STATIC_ASSERT
  169. #  define BOOST_HAS_VARIADIC_TMPL
  170. #else
  171. #  define BOOST_NO_CXX11_DECLTYPE
  172. #  define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
  173. #  define BOOST_NO_CXX11_RVALUE_REFERENCES
  174. #  define BOOST_NO_CXX11_STATIC_ASSERT
  175. #endif
  176.  
  177. // C++0x features in 4.4.n and later
  178. //
  179. #if (BOOST_GCC_VERSION < 40400) || !defined(BOOST_GCC_CXX11)
  180. #  define BOOST_NO_CXX11_AUTO_DECLARATIONS
  181. #  define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
  182. #  define BOOST_NO_CXX11_CHAR16_T
  183. #  define BOOST_NO_CXX11_CHAR32_T
  184. #  define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
  185. #  define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
  186. #  define BOOST_NO_CXX11_DELETED_FUNCTIONS
  187. #  define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
  188. #  define BOOST_NO_CXX11_INLINE_NAMESPACES
  189. #  define BOOST_NO_CXX11_VARIADIC_TEMPLATES
  190. #endif
  191.  
  192. #if BOOST_GCC_VERSION < 40500
  193. #  define BOOST_NO_SFINAE_EXPR
  194. #endif
  195.  
  196. // GCC 4.5 forbids declaration of defaulted functions in private or protected sections
  197. #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ == 5) || !defined(BOOST_GCC_CXX11)
  198. #  define BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS
  199. #endif
  200.  
  201. // C++0x features in 4.5.0 and later
  202. //
  203. #if (BOOST_GCC_VERSION < 40500) || !defined(BOOST_GCC_CXX11)
  204. #  define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
  205. #  define BOOST_NO_CXX11_LAMBDAS
  206. #  define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
  207. #  define BOOST_NO_CXX11_RAW_LITERALS
  208. #  define BOOST_NO_CXX11_UNICODE_LITERALS
  209. #endif
  210.  
  211. // C++0x features in 4.5.1 and later
  212. //
  213. #if (BOOST_GCC_VERSION < 40501) || !defined(BOOST_GCC_CXX11)
  214. // scoped enums have a serious bug in 4.4.0, so define BOOST_NO_CXX11_SCOPED_ENUMS before 4.5.1
  215. // See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
  216. #  define BOOST_NO_CXX11_SCOPED_ENUMS
  217. #endif
  218.  
  219. // C++0x features in 4.6.n and later
  220. //
  221. #if (BOOST_GCC_VERSION < 40600) || !defined(BOOST_GCC_CXX11)
  222. #define BOOST_NO_CXX11_CONSTEXPR
  223. #define BOOST_NO_CXX11_NOEXCEPT
  224. #define BOOST_NO_CXX11_NULLPTR
  225. #define BOOST_NO_CXX11_RANGE_BASED_FOR
  226. #define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
  227. #endif
  228.  
  229. // C++0x features in 4.7.n and later
  230. //
  231. #if (BOOST_GCC_VERSION < 40700) || !defined(BOOST_GCC_CXX11)
  232. #  define BOOST_NO_CXX11_FINAL
  233. #  define BOOST_NO_CXX11_TEMPLATE_ALIASES
  234. #  define BOOST_NO_CXX11_USER_DEFINED_LITERALS
  235. #  define BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
  236. #endif
  237.  
  238. // C++0x features in 4.8.n and later
  239. //
  240. #if (BOOST_GCC_VERSION < 40800) || !defined(BOOST_GCC_CXX11)
  241. #  define BOOST_NO_CXX11_ALIGNAS
  242. #endif
  243.  
  244. // C++0x features in 4.8.1 and later
  245. //
  246. #if (BOOST_GCC_VERSION < 40801) || !defined(BOOST_GCC_CXX11)
  247. #  define BOOST_NO_CXX11_DECLTYPE_N3276
  248. #  define BOOST_NO_CXX11_REF_QUALIFIERS
  249. #  define BOOST_NO_CXX14_BINARY_LITERALS
  250. #endif
  251.  
  252. // C++14 features in 4.9.0 and later
  253. //
  254. #if (BOOST_GCC_VERSION < 40900) || (__cplusplus < 201300)
  255. #  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
  256. #  define BOOST_NO_CXX14_GENERIC_LAMBDAS
  257. #  define BOOST_NO_CXX14_DIGIT_SEPARATORS
  258. #  define BOOST_NO_CXX14_DECLTYPE_AUTO
  259. #  if !((BOOST_GCC_VERSION >= 40801) && (BOOST_GCC_VERSION < 40900) && defined(BOOST_GCC_CXX11))
  260. #     define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
  261. #  endif
  262. #endif
  263.  
  264.  
  265. // C++ 14:
  266. #if !defined(__cpp_aggregate_nsdmi) || (__cpp_aggregate_nsdmi < 201304)
  267. #  define BOOST_NO_CXX14_AGGREGATE_NSDMI
  268. #endif
  269. #if !defined(__cpp_constexpr) || (__cpp_constexpr < 201304)
  270. #  define BOOST_NO_CXX14_CONSTEXPR
  271. #endif
  272. #if !defined(__cpp_variable_templates) || (__cpp_variable_templates < 201304)
  273. #  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
  274. #endif
  275.  
  276. //
  277. // Unused attribute:
  278. #if __GNUC__ >= 4
  279. #  define BOOST_ATTRIBUTE_UNUSED __attribute__((__unused__))
  280. #endif
  281. //
  282. // __builtin_unreachable:
  283. #if BOOST_GCC_VERSION >= 40800
  284. #define BOOST_UNREACHABLE_RETURN(x) __builtin_unreachable();
  285. #endif
  286.  
  287. #ifndef BOOST_COMPILER
  288. #  define BOOST_COMPILER "GNU C++ version " __VERSION__
  289. #endif
  290.  
  291. // ConceptGCC compiler:
  292. //   http://www.generic-programming.org/software/ConceptGCC/
  293. #ifdef __GXX_CONCEPTS__
  294. #  define BOOST_HAS_CONCEPTS
  295. #  define BOOST_COMPILER "ConceptGCC version " __VERSION__
  296. #endif
  297.  
  298. // versions check:
  299. // we don't know gcc prior to version 3.30:
  300. #if (BOOST_GCC_VERSION< 30300)
  301. #  error "Compiler not configured - please reconfigure"
  302. #endif
  303. //
  304. // last known and checked version is 4.9:
  305. #if (BOOST_GCC_VERSION > 40900)
  306. #  if defined(BOOST_ASSERT_CONFIG)
  307. #     error "Unknown compiler version - please run the configure tests and report the results"
  308. #  else
  309. // we don't emit warnings here anymore since there are no defect macros defined for
  310. // gcc post 3.4, so any failures are gcc regressions...
  311. //#     warning "Unknown compiler version - please run the configure tests and report the results"
  312. #  endif
  313. #endif
  314.  
  315.  
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