#define __has_extension __has_feature
#endif
+#ifndef __has_attribute
+#define __has_attribute(x) 0
+#endif
+
+#ifndef __has_cpp_attribute
+#define __has_cpp_attribute(x) 0
+#endif
+
#if !__has_feature(cxx_exceptions) && !defined(BOOST_NO_EXCEPTIONS)
# define BOOST_NO_EXCEPTIONS
#endif
# define BOOST_NO_TYPEID
#endif
-#if defined(__int64) && !defined(__GNUC__)
+#if !__has_feature(cxx_thread_local)
+# define BOOST_NO_CXX11_THREAD_LOCAL
+#endif
+
+#ifdef __is_identifier
+#if !__is_identifier(__int64) && !defined(__GNUC__)
# define BOOST_HAS_MS_INT64
#endif
+#endif
+
+#if __has_include(<stdint.h>)
+# define BOOST_HAS_STDINT_H
+#endif
+
#define BOOST_HAS_NRVO
// Branch prediction hints
-#if defined(__has_builtin)
+#if !defined (__c2__) && defined(__has_builtin)
#if __has_builtin(__builtin_expect)
#define BOOST_LIKELY(x) __builtin_expect(x, 1)
#define BOOST_UNLIKELY(x) __builtin_expect(x, 0)
#define BOOST_HAS_LONG_LONG
//
-// We disable this if the compiler is really nvcc as it
-// doesn't actually support __int128 as of CUDA_VERSION=5000
+// We disable this if the compiler is really nvcc with C++03 as it
+// doesn't actually support __int128 as of CUDA_VERSION=7500
// even though it defines __SIZEOF_INT128__.
// See https://svn.boost.org/trac/boost/ticket/10418
+// https://svn.boost.org/trac/boost/ticket/11852
// Only re-enable this for nvcc if you're absolutely sure
-// of the circumstances under which it's supported:
+// of the circumstances under which it's supported.
+// Similarly __SIZEOF_INT128__ is defined when targetting msvc
+// compatibility even though the required support functions are absent.
//
-#if defined(__SIZEOF_INT128__) && !defined(__CUDACC__)
+#if defined(__CUDACC__)
+# if defined(BOOST_GCC_CXX11)
+# define BOOST_NVCC_CXX11
+# else
+# define BOOST_NVCC_CXX03
+# endif
+#endif
+
+#if defined(__SIZEOF_INT128__) && !defined(BOOST_NVCC_CXX03) && !defined(_MSC_VER)
# define BOOST_HAS_INT128
#endif
//
// Dynamic shared object (DSO) and dynamic-link library (DLL) support
//
-#if !defined(_WIN32) && !defined(__WIN32__) && !defined(WIN32)
+#if defined(_WIN32) || defined(__WIN32__) || defined(WIN32) || defined(__CYGWIN__)
+# define BOOST_HAS_DECLSPEC
+# define BOOST_SYMBOL_EXPORT __attribute__((__dllexport__))
+# define BOOST_SYMBOL_IMPORT __attribute__((__dllimport__))
+#else
# define BOOST_SYMBOL_EXPORT __attribute__((__visibility__("default")))
# define BOOST_SYMBOL_IMPORT
-# define BOOST_SYMBOL_VISIBLE __attribute__((__visibility__("default")))
#endif
+#define BOOST_SYMBOL_VISIBLE __attribute__((__visibility__("default")))
//
// The BOOST_FALLTHROUGH macro can be used to annotate implicit fall-through
//
// Currently clang on Windows using VC++ RTL does not support C++11's char16_t or char32_t
//
-#if defined(_MSC_VER) || !(defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L)
+#if (defined(_MSC_VER) && (_MSC_VER < 1900)) || !(defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L)
# define BOOST_NO_CXX11_CHAR16_T
# define BOOST_NO_CXX11_CHAR32_T
#endif
+#if defined(_MSC_VER) && (_MSC_VER >= 1800) && !defined(__GNUC__)
+#define BOOST_HAS_EXPM1
+#define BOOST_HAS_LOG1P
+#endif
+
#if !__has_feature(cxx_constexpr)
# define BOOST_NO_CXX11_CONSTEXPR
#endif
# define BOOST_NO_CXX14_VARIABLE_TEMPLATES
#endif
+#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
+# define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#endif
+
+#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
+# define BOOST_NO_CXX17_IF_CONSTEXPR
+#endif
+
+// Clang 3.9+ in c++1z
+#if !__has_cpp_attribute(fallthrough) || __cplusplus < 201406L
+# define BOOST_NO_CXX17_INLINE_VARIABLES
+# define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#endif
+
+#if __cplusplus < 201103L
+#define BOOST_NO_CXX11_SFINAE_EXPR
+#endif
+
#if __cplusplus < 201400
// All versions with __cplusplus above this value seem to support this:
# define BOOST_NO_CXX14_DIGIT_SEPARATORS
#endif
+//
+// __builtin_unreachable:
+#if defined(__has_builtin) && __has_builtin(__builtin_unreachable)
+#define BOOST_UNREACHABLE_RETURN(x) __builtin_unreachable();
+#endif
+
+#if (__clang_major__ == 3) && (__clang_minor__ == 0)
+// Apparently a clang bug:
+# define BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
+#endif
+// Clang has supported the 'unused' attribute since the first release.
+#define BOOST_ATTRIBUTE_UNUSED __attribute__((__unused__))
-// Unused attribute:
-#if defined(__GNUC__) && (__GNUC__ >= 4)
-# define BOOST_ATTRIBUTE_UNUSED __attribute__((unused))
+// Type aliasing hint.
+#if __has_attribute(__may_alias__)
+# define BOOST_MAY_ALIAS __attribute__((__may_alias__))
#endif
#ifndef BOOST_COMPILER