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diff --git a/include/__config b/include/__config
index 0f32067..2914d9a 100644
--- a/include/__config
+++ b/include/__config
@@ -9,8 +9,7 @@
#ifndef _LIBCPP_CONFIG
#define _LIBCPP_CONFIG
-
-#include <__config_site>
+#include <__wrappers_config>
#if defined(_MSC_VER) && !defined(__clang__)
# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
@@ -22,6 +21,33 @@
# pragma GCC system_header
#endif
+// Move outside #ifdef __cplusplus because this needs to work in both C and C++ headers.
+#if defined(__apple_build_version__)
+# define _LIBCPP_COMPILER_CLANG_BASED
+# define _LIBCPP_APPLE_CLANG_VER (__apple_build_version__ / 10000)
+#elif defined(__clang__)
+#define _LIBCPP_COMPILER_CLANG
+# define _LIBCPP_COMPILER_CLANG_BASED
+# define _LIBCPP_CLANG_VER (__clang_major__ * 100 + __clang_minor__)
+#elif defined(__GNUC__)
+#define _LIBCPP_COMPILER_GCC
+#elif defined(_MSC_VER)
+#define _LIBCPP_COMPILER_MSVC
+
+#if _MSVC_LANG >= 201705L
+# define _LIBCPP_STD_VER 20
+#elif _MSVC_LANG == 201703L
+# define _LIBCPP_STD_VER 17
+#else
+# define _LIBCPP_STD_VER 14
+#endif
+
+#define Y_UCRT_INCLUDE_NEXT(x) <Y_UCRT_INCLUDE/x>
+#define Y_MSVC_INCLUDE_NEXT(x) <Y_MSVC_INCLUDE/x>
+#elif defined(__IBMCPP__)
+#define _LIBCPP_COMPILER_IBM
+#endif
+
#ifdef __cplusplus
#define _LIBCPP_VERSION 15000
@@ -48,7 +74,7 @@
# define _LIBCPP_OBJECT_FORMAT_ELF 1
#elif defined(__MACH__)
# define _LIBCPP_OBJECT_FORMAT_MACHO 1
-#elif defined(_WIN32)
+#elif defined(_WIN32) || defined(__CYGWIN__)
# define _LIBCPP_OBJECT_FORMAT_COFF 1
#elif defined(__wasm__)
# define _LIBCPP_OBJECT_FORMAT_WASM 1
@@ -190,20 +216,6 @@
#define __has_include(...) 0
#endif
-#if defined(__apple_build_version__)
-# define _LIBCPP_COMPILER_CLANG_BASED
-# define _LIBCPP_APPLE_CLANG_VER (__apple_build_version__ / 10000)
-#elif defined(__clang__)
-# define _LIBCPP_COMPILER_CLANG_BASED
-# define _LIBCPP_CLANG_VER (__clang_major__ * 100 + __clang_minor__)
-#elif defined(__GNUC__)
-# define _LIBCPP_COMPILER_GCC
-#elif defined(_MSC_VER)
-# define _LIBCPP_COMPILER_MSVC
-#elif defined(__IBMCPP__)
-# define _LIBCPP_COMPILER_IBM
-#endif
-
#if defined(_LIBCPP_COMPILER_GCC) && __cplusplus < 201103L
#error "libc++ does not support using GCC with C++03. Please enable C++11"
#endif
@@ -405,7 +417,9 @@
#if __has_attribute(using_if_exists)
# define _LIBCPP_HAS_TIMESPEC_GET
# define _LIBCPP_HAS_QUICK_EXIT
-# define _LIBCPP_HAS_ALIGNED_ALLOC
+# ifndef _LIBCPP_MSVCRT
+# define _LIBCPP_HAS_ALIGNED_ALLOC
+# endif
#else
#if (defined(__ISO_C_VISIBLE) && (__ISO_C_VISIBLE >= 2011)) || __cplusplus >= 201103L
# if defined(__FreeBSD__)
@@ -575,11 +589,50 @@ typedef __char32_t char32_t;
#error "MSVC versions prior to Visual Studio 2015 are not supported"
#endif
+#define _LIBCPP_HAS_IS_FINAL
#define __alignof__ __alignof
#define _LIBCPP_NORETURN __declspec(noreturn)
#define _ALIGNAS(x) __declspec(align(x))
#define _ALIGNAS_TYPE(x) alignas(x)
+#define _LIBCPP_UNDERLYING_TYPE(T) __underlying_type(T)
+#define _LIBCPP_IS_LITERAL(T) __is_literal_type(T)
+#undef __has_feature
+#define __has_feature(x) __has_feature_##x
+#define __has_feature_is_standard_layout 1
+#define __has_feature_is_trivially_copyable 1
+#define __has_feature_is_trivial 1
+#define __has_feature_is_pod 1
+#define __has_feature_cxx_noexcept 1
+#define __has_feature_has_nothrow_assign 1
+#define __has_feature_is_union 1
+#define __has_feature_is_class 1
+#define __has_feature_is_enum 1
+#define __has_feature_is_convertible_to 1
+#define __has_feature_is_empty 1
+#define __has_feature_is_polymorphic 1
+#define __has_feature_has_virtual_destructor 1
+#define __has_feature_cxx_reference_qualified_functions 1
+#define __has_feature_is_constructible 1
+#define __has_feature_is_trivially_constructible 1
+#define __has_feature_is_trivially_assignable 1
+#define __has_feature_is_convertible_to 1
+#define __has_feature_has_trivial_constructor 1
+#define __has_feature_has_trivial_destructor 1
+#define __has_feature_has_nothrow_constructor 1
+#define __has_feature_has_nothrow_copy 1
+#define __has_feature_cxx_explicit_conversions 1
+
+#undef __has_builtin
+#define __has_builtin(x) __has_builtin_##x
+#define __has_builtin___builtin_addressof 1
+#if defined(_MSC_VER) && defined(__CUDACC__)
+ // nvcc fails to compile __builtin_is_constant_evaluated() at the time
+# define _LIBCPP_HAS_NO_BUILTIN_IS_CONSTANT_EVALUATED 1
+#else
+# define __has_builtin___builtin_is_constant_evaluated 1
+#endif
+
#define _LIBCPP_WEAK
#define _LIBCPP_HAS_NO_ASAN
@@ -1023,7 +1076,6 @@ typedef unsigned int char32_t;
# define _LIBCPP_DEPRECATED_WITH_CHAR8_T
#endif
-// Macros to enter and leave a state where deprecation warnings are suppressed.
#if defined(_LIBCPP_COMPILER_CLANG_BASED) || defined(_LIBCPP_COMPILER_GCC)
# define _LIBCPP_SUPPRESS_DEPRECATED_PUSH \
_Pragma("GCC diagnostic push") \
@@ -1125,7 +1177,8 @@ extern "C" _LIBCPP_FUNC_VIS void __sanitizer_annotate_contiguous_container(
defined(__APPLE__) || \
defined(__sun__) || \
defined(__MVS__) || \
- defined(_AIX)
+ defined(_AIX) || \
+ defined(__CYGWIN__)
# define _LIBCPP_HAS_THREAD_API_PTHREAD
# elif defined(__Fuchsia__)
// TODO(44575): Switch to C11 thread API when possible.
@@ -1258,6 +1311,10 @@ extern "C" _LIBCPP_FUNC_VIS void __sanitizer_annotate_contiguous_container(
# define _LIBCPP_CONSTINIT
#endif
+#if !__has_builtin(__builtin_is_constant_evaluated) || (defined(_LIBCPP_COMPILER_GCC) && _GNUC_VER < 900) || __CUDACC_VER_MAJOR__ == 10
+#define _LIBCPP_HAS_NO_BUILTIN_IS_CONSTANT_EVALUATED
+#endif
+
#if __has_attribute(diagnose_if) && !defined(_LIBCPP_DISABLE_ADDITIONAL_DIAGNOSTICS)
# define _LIBCPP_DIAGNOSE_WARNING(...) \
__attribute__((diagnose_if(__VA_ARGS__, "warning")))
@@ -1279,7 +1336,13 @@ extern "C" _LIBCPP_FUNC_VIS void __sanitizer_annotate_contiguous_container(
# define _LIBCPP_FALLTHROUGH() ((void)0)
#endif
-#if __has_attribute(__nodebug__)
+#if defined(_LIBCPP_COMPILER_CLANG_BASED)
+# define _LIBCPP_REINITIALIZES_OBJECT [[clang::reinitializes]]
+#else
+# define _LIBCPP_REINITIALIZES_OBJECT
+#endif
+
+#if __has_attribute(__nodebug__) && !defined(__CUDACC__)
#define _LIBCPP_NODEBUG __attribute__((__nodebug__))
#else
#define _LIBCPP_NODEBUG
@@ -1308,7 +1371,8 @@ extern "C" _LIBCPP_FUNC_VIS void __sanitizer_annotate_contiguous_container(
#endif
#if defined(_LIBCPP_ABI_MICROSOFT) && \
- (defined(_LIBCPP_COMPILER_MSVC) || __has_declspec_attribute(empty_bases))
+ (defined(_LIBCPP_COMPILER_MSVC) || __has_declspec_attribute(empty_bases)) && \
+ !defined(__CUDACC__)
# define _LIBCPP_DECLSPEC_EMPTY_BASES __declspec(empty_bases)
#else
# define _LIBCPP_DECLSPEC_EMPTY_BASES
@@ -1333,7 +1397,11 @@ extern "C" _LIBCPP_FUNC_VIS void __sanitizer_annotate_contiguous_container(
#define _LIBCPP_HAS_NO_CXX20_COROUTINES
#endif
-#if defined(_LIBCPP_COMPILER_IBM)
+// Yandex-specific: We build our own libc++, so it has everything available
+#define _LIBCPP_DISABLE_AVAILABILITY
+// End of Yandex-specific
+
+#if defined(_LIBCPP_COMPILER_IBM) || defined(__CUDACC__)
#define _LIBCPP_HAS_NO_PRAGMA_PUSH_POP_MACRO
#endif
@@ -1418,6 +1486,28 @@ extern "C" _LIBCPP_FUNC_VIS void __sanitizer_annotate_contiguous_container(
# define _LIBCPP_ATTRIBUTE_FORMAT(archetype, format_string_index, first_format_arg_index) /* nothing */
#endif
+#if __has_cpp_attribute(msvc::no_unique_address)
+ // MSVC implements [[no_unique_address]] as a silent no-op currently.
+ // (If/when MSVC breaks its C++ ABI, it will be changed to work as intended.)
+ // However, MSVC implements [[msvc::no_unique_address]] which does what
+ // [[no_unique_address]] is supposed to do, in general.
+
+ // Clang-cl does not yet (14.0) implement either [[no_unique_address]] or
+ // [[msvc::no_unique_address]] though. If/when it does implement
+ // [[msvc::no_unique_address]], this should be preferred though.
+# define _LIBCPP_NO_UNIQUE_ADDRESS [[msvc::no_unique_address]]
+#elif __has_cpp_attribute(no_unique_address)
+# define _LIBCPP_NO_UNIQUE_ADDRESS [[no_unique_address]]
+#else
+# define _LIBCPP_NO_UNIQUE_ADDRESS /* nothing */
+ // Note that this can be replaced by #error as soon as clang-cl
+ // implements msvc::no_unique_address, since there should be no C++20
+ // compiler that doesn't support one of the two attributes at that point.
+ // We geenrally don't want to use this macro outside of C++20-only code,
+ // because using it conditionally in one language version only would make
+ // the ABI inconsistent.
+#endif
+
#if __has_cpp_attribute(msvc::no_unique_address)
// MSVC implements [[no_unique_address]] as a silent no-op currently.
// (If/when MSVC breaks its C++ ABI, it will be changed to work as intended.)
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