Update to boost 1.68

[features.git] / 3rdparty / boost / boost / config / compiler / clang.hpp

diff --git a/3rdparty/boost/boost/config/compiler/clang.hpp b/3rdparty/boost/boost/config/compiler/clang.hpp
index 5481e5ee62358bccd55b68cb1093e12582396897..3d893c689ae66ca941f1aa780d5c929233d58343 100644 (file)
--- a/3rdparty/boost/boost/config/compiler/clang.hpp
+++ b/3rdparty/boost/boost/config/compiler/clang.hpp
@@ -27,6 +27,10 @@
 #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
@@ -39,14 +43,25 @@
 #  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)
@@ -57,16 +72,25 @@
 #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.
 // Similarly __SIZEOF_INT128__ is defined when targetting msvc
 // compatibility even though the required support functions are absent.
 //
-#if defined(__SIZEOF_INT128__) && !defined(__CUDACC__) && !defined(_MSC_VER)
+#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
 
@@ -74,11 +98,15 @@
 //
 // 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
@@ -98,11 +126,16 @@
 //
 // 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
@@ -257,6 +290,24 @@
 #  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
@@ -267,9 +318,19 @@
 #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__))
 
+// Type aliasing hint.
+#if __has_attribute(__may_alias__)
+#  define BOOST_MAY_ALIAS __attribute__((__may_alias__))
+#endif
+
 #ifndef BOOST_COMPILER
 #  define BOOST_COMPILER "Clang version " __clang_version__
 #endif