Update libcxx to llvmorg-17.0.6

Update libcxx to llvmorg-17.0.6
c871ef572c71b4fef22d4a9e65bcebc57e625aea

22 files changed, 226 insertions, 231 deletions

diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/arithmetic.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/arithmetic.h
index 215b52aa02..f41e4c9f27 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/arithmetic.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/arithmetic.h
@@ -22,20 +22,20 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concepts.arithmetic], arithmetic concepts
 
-template<class _Tp>
+template <class _Tp>
 concept integral = is_integral_v<_Tp>;
 
-template<class _Tp>
+template <class _Tp>
 concept signed_integral = integral<_Tp> && is_signed_v<_Tp>;
 
-template<class _Tp>
+template <class _Tp>
 concept unsigned_integral = integral<_Tp> && !signed_integral<_Tp>;
 
-template<class _Tp>
+template <class _Tp>
 concept floating_point = is_floating_point_v<_Tp>;
 
 // Concept helpers for the internal type traits for the fundamental types.
@@ -45,7 +45,7 @@ concept __libcpp_unsigned_integer = __libcpp_is_unsigned_integer<_Tp>::value;
 template <class _Tp>
 concept __libcpp_signed_integer = __libcpp_is_signed_integer<_Tp>::value;
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/assignable.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/assignable.h
index 91edd400ad..3f7544c934 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/assignable.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/assignable.h
@@ -22,19 +22,19 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.assignable]
 
-template<class _Lhs, class _Rhs>
+template <class _Lhs, class _Rhs>
 concept assignable_from =
-  is_lvalue_reference_v<_Lhs> &&
-  common_reference_with<__make_const_lvalue_ref<_Lhs>, __make_const_lvalue_ref<_Rhs>> &&
-  requires (_Lhs __lhs, _Rhs&& __rhs) {
-    { __lhs = _VSTD::forward<_Rhs>(__rhs) } -> same_as<_Lhs>;
-  };
+    is_lvalue_reference_v<_Lhs> &&
+    common_reference_with<__make_const_lvalue_ref<_Lhs>, __make_const_lvalue_ref<_Rhs>> &&
+    requires(_Lhs __lhs, _Rhs&& __rhs) {
+      { __lhs = _VSTD::forward<_Rhs>(__rhs) } -> same_as<_Lhs>;
+    };
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/boolean_testable.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/boolean_testable.h
index a96bde7117..d290e1cf3d 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/boolean_testable.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/boolean_testable.h
@@ -19,19 +19,19 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concepts.booleantestable]
 
-template<class _Tp>
+template <class _Tp>
 concept __boolean_testable_impl = convertible_to<_Tp, bool>;
 
-template<class _Tp>
+template <class _Tp>
 concept __boolean_testable = __boolean_testable_impl<_Tp> && requires(_Tp&& __t) {
   { !_VSTD::forward<_Tp>(__t) } -> __boolean_testable_impl;
 };
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/class_or_enum.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/class_or_enum.h
index c4d2f98952..c1b4a8c258 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/class_or_enum.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/class_or_enum.h
@@ -21,19 +21,19 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // Whether a type is a class type or enumeration type according to the Core wording.
 
-template<class _Tp>
+template <class _Tp>
 concept __class_or_enum = is_class_v<_Tp> || is_union_v<_Tp> || is_enum_v<_Tp>;
 
 // Work around Clang bug https://llvm.org/PR52970
 // TODO: remove this workaround once libc++ no longer has to support Clang 13 (it was fixed in Clang 14).
-template<class _Tp>
+template <class _Tp>
 concept __workaround_52970 = is_class_v<__remove_cvref_t<_Tp>> || is_union_v<__remove_cvref_t<_Tp>>;
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/common_reference_with.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/common_reference_with.h
index cc92762d31..4eb687e071 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/common_reference_with.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/common_reference_with.h
@@ -20,17 +20,16 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.commonref]
 
-template<class _Tp, class _Up>
+template <class _Tp, class _Up>
 concept common_reference_with =
-  same_as<common_reference_t<_Tp, _Up>, common_reference_t<_Up, _Tp>> &&
-  convertible_to<_Tp, common_reference_t<_Tp, _Up>> &&
-  convertible_to<_Up, common_reference_t<_Tp, _Up>>;
+    same_as<common_reference_t<_Tp, _Up>, common_reference_t<_Up, _Tp>> &&
+    convertible_to<_Tp, common_reference_t<_Tp, _Up>> && convertible_to<_Up, common_reference_t<_Tp, _Up>>;
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/common_with.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/common_with.h
index 569a0ee3b7..85abb05efb 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/common_with.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/common_with.h
@@ -23,27 +23,29 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.common]
 
-template<class _Tp, class _Up>
+// clang-format off
+template <class _Tp, class _Up>
 concept common_with =
-  same_as<common_type_t<_Tp, _Up>, common_type_t<_Up, _Tp>> &&
-  requires {
-    static_cast<common_type_t<_Tp, _Up>>(std::declval<_Tp>());
-    static_cast<common_type_t<_Tp, _Up>>(std::declval<_Up>());
-  } &&
-  common_reference_with<
-    add_lvalue_reference_t<const _Tp>,
-    add_lvalue_reference_t<const _Up>> &&
-  common_reference_with<
-    add_lvalue_reference_t<common_type_t<_Tp, _Up>>,
-    common_reference_t<
-      add_lvalue_reference_t<const _Tp>,
-      add_lvalue_reference_t<const _Up>>>;
-
-#endif // _LIBCPP_STD_VER > 17
+    same_as<common_type_t<_Tp, _Up>, common_type_t<_Up, _Tp>> &&
+    requires {
+        static_cast<common_type_t<_Tp, _Up>>(std::declval<_Tp>());
+        static_cast<common_type_t<_Tp, _Up>>(std::declval<_Up>());
+    } &&
+    common_reference_with<
+        add_lvalue_reference_t<const _Tp>,
+        add_lvalue_reference_t<const _Up>> &&
+    common_reference_with<
+        add_lvalue_reference_t<common_type_t<_Tp, _Up>>,
+        common_reference_t<
+            add_lvalue_reference_t<const _Tp>,
+            add_lvalue_reference_t<const _Up>>>;
+// clang-format on
+
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/constructible.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/constructible.h
index 1d78eb5fd1..835a44429c 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/constructible.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/constructible.h
@@ -20,36 +20,35 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.constructible]
-template<class _Tp, class... _Args>
-concept constructible_from =
-    destructible<_Tp> && is_constructible_v<_Tp, _Args...>;
+template <class _Tp, class... _Args>
+concept constructible_from = destructible<_Tp> && is_constructible_v<_Tp, _Args...>;
 
 // [concept.default.init]
 
-template<class _Tp>
+template <class _Tp>
 concept __default_initializable = requires { ::new _Tp; };
 
-template<class _Tp>
-concept default_initializable = constructible_from<_Tp> &&
-    requires { _Tp{}; } && __default_initializable<_Tp>;
+template <class _Tp>
+concept default_initializable = constructible_from<_Tp> && requires { _Tp{}; } && __default_initializable<_Tp>;
 
 // [concept.moveconstructible]
-template<class _Tp>
-concept move_constructible =
-  constructible_from<_Tp, _Tp> && convertible_to<_Tp, _Tp>;
+template <class _Tp>
+concept move_constructible = constructible_from<_Tp, _Tp> && convertible_to<_Tp, _Tp>;
 
 // [concept.copyconstructible]
-template<class _Tp>
+// clang-format off
+template <class _Tp>
 concept copy_constructible =
-  move_constructible<_Tp> &&
-  constructible_from<_Tp, _Tp&> && convertible_to<_Tp&, _Tp> &&
-  constructible_from<_Tp, const _Tp&> && convertible_to<const _Tp&, _Tp> &&
-  constructible_from<_Tp, const _Tp> && convertible_to<const _Tp, _Tp>;
+    move_constructible<_Tp> &&
+    constructible_from<_Tp, _Tp&> && convertible_to<_Tp&, _Tp> &&
+    constructible_from<_Tp, const _Tp&> && convertible_to<const _Tp&, _Tp> &&
+    constructible_from<_Tp, const _Tp> && convertible_to<const _Tp, _Tp>;
+// clang-format on
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/convertible_to.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/convertible_to.h
index 2c1d267410..6d5b6c1268 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/convertible_to.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/convertible_to.h
@@ -19,18 +19,14 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.convertible]
 
-template<class _From, class _To>
-concept convertible_to =
-  is_convertible_v<_From, _To> &&
-  requires {
-    static_cast<_To>(std::declval<_From>());
-  };
+template <class _From, class _To>
+concept convertible_to = is_convertible_v<_From, _To> && requires { static_cast<_To>(std::declval<_From>()); };
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/copyable.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/copyable.h
index c5d8a80b9d..2bf0ad42fc 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/copyable.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/copyable.h
@@ -20,19 +20,21 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concepts.object]
 
-template<class _Tp>
+// clang-format off
+template <class _Tp>
 concept copyable =
-  copy_constructible<_Tp> &&
-  movable<_Tp> &&
-  assignable_from<_Tp&, _Tp&> &&
-  assignable_from<_Tp&, const _Tp&> &&
-  assignable_from<_Tp&, const _Tp>;
-
-#endif // _LIBCPP_STD_VER > 17
+    copy_constructible<_Tp> &&
+    movable<_Tp> &&
+    assignable_from<_Tp&, _Tp&> &&
+    assignable_from<_Tp&, const _Tp&> &&
+    assignable_from<_Tp&, const _Tp>;
+// clang-format on
+
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/derived_from.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/derived_from.h
index 0d3462df6a..9875faee81 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/derived_from.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/derived_from.h
@@ -19,16 +19,14 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.derived]
 
-template<class _Dp, class _Bp>
-concept derived_from =
-  is_base_of_v<_Bp, _Dp> &&
-  is_convertible_v<const volatile _Dp*, const volatile _Bp*>;
+template <class _Dp, class _Bp>
+concept derived_from = is_base_of_v<_Bp, _Dp> && is_convertible_v<const volatile _Dp*, const volatile _Bp*>;
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/destructible.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/destructible.h
index ad3819d5dc..28b4b1bc24 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/destructible.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/destructible.h
@@ -18,14 +18,14 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.destructible]
 
-template<class _Tp>
+template <class _Tp>
 concept destructible = is_nothrow_destructible_v<_Tp>;
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/different_from.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/different_from.h
index 15fd8f0551..fd31f6e258 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/different_from.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/different_from.h
@@ -19,12 +19,12 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
-template<class _Tp, class _Up>
+template <class _Tp, class _Up>
 concept __different_from = !same_as<remove_cvref_t<_Tp>, remove_cvref_t<_Up>>;
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/equality_comparable.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/equality_comparable.h
index b865141705..278fc76409 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/equality_comparable.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/equality_comparable.h
@@ -21,33 +21,35 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.equalitycomparable]
 
-template<class _Tp, class _Up>
+template <class _Tp, class _Up>
 concept __weakly_equality_comparable_with =
-  requires(__make_const_lvalue_ref<_Tp> __t, __make_const_lvalue_ref<_Up> __u) {
-    { __t == __u } -> __boolean_testable;
-    { __t != __u } -> __boolean_testable;
-    { __u == __t } -> __boolean_testable;
-    { __u != __t } -> __boolean_testable;
-  };
-
-template<class _Tp>
+    requires(__make_const_lvalue_ref<_Tp> __t, __make_const_lvalue_ref<_Up> __u) {
+      { __t == __u } -> __boolean_testable;
+      { __t != __u } -> __boolean_testable;
+      { __u == __t } -> __boolean_testable;
+      { __u != __t } -> __boolean_testable;
+    };
+
+template <class _Tp>
 concept equality_comparable = __weakly_equality_comparable_with<_Tp, _Tp>;
 
-template<class _Tp, class _Up>
+// clang-format off
+template <class _Tp, class _Up>
 concept equality_comparable_with =
-  equality_comparable<_Tp> && equality_comparable<_Up> &&
-  common_reference_with<__make_const_lvalue_ref<_Tp>, __make_const_lvalue_ref<_Up>> &&
-  equality_comparable<
-    common_reference_t<
-      __make_const_lvalue_ref<_Tp>,
-      __make_const_lvalue_ref<_Up>>> &&
-  __weakly_equality_comparable_with<_Tp, _Up>;
-
-#endif // _LIBCPP_STD_VER > 17
+    equality_comparable<_Tp> && equality_comparable<_Up> &&
+    common_reference_with<__make_const_lvalue_ref<_Tp>, __make_const_lvalue_ref<_Up>> &&
+    equality_comparable<
+        common_reference_t<
+            __make_const_lvalue_ref<_Tp>,
+            __make_const_lvalue_ref<_Up>>> &&
+    __weakly_equality_comparable_with<_Tp, _Up>;
+// clang-format on
+
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/invocable.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/invocable.h
index ec39b7b817..e5be514b5c 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/invocable.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/invocable.h
@@ -19,21 +19,21 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.invocable]
 
-template<class _Fn, class... _Args>
+template <class _Fn, class... _Args>
 concept invocable = requires(_Fn&& __fn, _Args&&... __args) {
   _VSTD::invoke(_VSTD::forward<_Fn>(__fn), _VSTD::forward<_Args>(__args)...); // not required to be equality preserving
 };
 
 // [concept.regular.invocable]
 
-template<class _Fn, class... _Args>
+template <class _Fn, class... _Args>
 concept regular_invocable = invocable<_Fn, _Args...>;
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/movable.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/movable.h
index 749b78ad10..bc5b9d767c 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/movable.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/movable.h
@@ -21,18 +21,14 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concepts.object]
 
-template<class _Tp>
-concept movable =
-  is_object_v<_Tp> &&
-  move_constructible<_Tp> &&
-  assignable_from<_Tp&, _Tp> &&
-  swappable<_Tp>;
+template <class _Tp>
+concept movable = is_object_v<_Tp> && move_constructible<_Tp> && assignable_from<_Tp&, _Tp> && swappable<_Tp>;
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/predicate.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/predicate.h
index 7ae9783264..00731efc8f 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/predicate.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/predicate.h
@@ -20,15 +20,14 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.predicate]
 
-template<class _Fn, class... _Args>
-concept predicate =
-  regular_invocable<_Fn, _Args...> && __boolean_testable<invoke_result_t<_Fn, _Args...>>;
+template <class _Fn, class... _Args>
+concept predicate = regular_invocable<_Fn, _Args...> && __boolean_testable<invoke_result_t<_Fn, _Args...>>;
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/regular.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/regular.h
index d15728d298..9f3d8bf30b 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/regular.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/regular.h
@@ -19,14 +19,14 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.object]
 
-template<class _Tp>
+template <class _Tp>
 concept regular = semiregular<_Tp> && equality_comparable<_Tp>;
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/relation.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/relation.h
index 7d5141cac7..7545a7db93 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/relation.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/relation.h
@@ -18,26 +18,25 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.relation]
 
-template<class _Rp, class _Tp, class _Up>
+template <class _Rp, class _Tp, class _Up>
 concept relation =
-  predicate<_Rp, _Tp, _Tp> && predicate<_Rp, _Up, _Up> &&
-  predicate<_Rp, _Tp, _Up> && predicate<_Rp, _Up, _Tp>;
+    predicate<_Rp, _Tp, _Tp> && predicate<_Rp, _Up, _Up> && predicate<_Rp, _Tp, _Up> && predicate<_Rp, _Up, _Tp>;
 
 // [concept.equiv]
 
-template<class _Rp, class _Tp, class _Up>
+template <class _Rp, class _Tp, class _Up>
 concept equivalence_relation = relation<_Rp, _Tp, _Up>;
 
 // [concept.strictweakorder]
 
-template<class _Rp, class _Tp, class _Up>
+template <class _Rp, class _Tp, class _Up>
 concept strict_weak_order = relation<_Rp, _Tp, _Up>;
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/same_as.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/same_as.h
index 554ebc3b07..4241131c70 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/same_as.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/same_as.h
@@ -18,17 +18,17 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.same]
 
-template<class _Tp, class _Up>
+template <class _Tp, class _Up>
 concept __same_as_impl = _IsSame<_Tp, _Up>::value;
 
-template<class _Tp, class _Up>
+template <class _Tp, class _Up>
 concept same_as = __same_as_impl<_Tp, _Up> && __same_as_impl<_Up, _Tp>;
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/semiregular.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/semiregular.h
index d15bb3ba42..7a159d17df 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/semiregular.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/semiregular.h
@@ -19,14 +19,14 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.object]
 
-template<class _Tp>
+template <class _Tp>
 concept semiregular = copyable<_Tp> && default_initializable<_Tp>;
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/swappable.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/swappable.h
index d91a7a1dc3..c1969de345 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/swappable.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/swappable.h
@@ -28,94 +28,96 @@
 #  pragma GCC system_header
 #endif
 
+_LIBCPP_PUSH_MACROS
+#include <__undef_macros>
+
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.swappable]
 
 namespace ranges {
 namespace __swap {
 
-  template<class _Tp>
-  void swap(_Tp&, _Tp&) = delete;
+template <class _Tp>
+void swap(_Tp&, _Tp&) = delete;
 
-  template<class _Tp, class _Up>
-  concept __unqualified_swappable_with =
+// clang-format off
+template <class _Tp, class _Up>
+concept __unqualified_swappable_with =
     (__class_or_enum<remove_cvref_t<_Tp>> || __class_or_enum<remove_cvref_t<_Up>>) &&
     requires(_Tp&& __t, _Up&& __u) {
-      swap(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u));
+        swap(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u));
     };
+// clang-format on
 
-  struct __fn;
+struct __fn;
 
-  template<class _Tp, class _Up, size_t _Size>
-  concept __swappable_arrays =
-    !__unqualified_swappable_with<_Tp(&)[_Size], _Up(&)[_Size]> &&
+// clang-format off
+template <class _Tp, class _Up, size_t _Size>
+concept __swappable_arrays =
+    !__unqualified_swappable_with<_Tp (&)[_Size], _Up (&)[_Size]> &&
     extent_v<_Tp> == extent_v<_Up> &&
-    requires(_Tp(& __t)[_Size], _Up(& __u)[_Size], const __fn& __swap) {
-      __swap(__t[0], __u[0]);
+    requires(_Tp (&__t)[_Size], _Up (&__u)[_Size], const __fn& __swap) {
+        __swap(__t[0], __u[0]);
     };
-
-  template<class _Tp>
-  concept __exchangeable =
-    !__unqualified_swappable_with<_Tp&, _Tp&> &&
-    move_constructible<_Tp> &&
-    assignable_from<_Tp&, _Tp>;
-
-  struct __fn {
-    // 2.1   `S` is `(void)swap(E1, E2)`* if `E1` or `E2` has class or enumeration type and...
-    // *The name `swap` is used here unqualified.
-    template<class _Tp, class _Up>
-      requires __unqualified_swappable_with<_Tp, _Up>
-    constexpr void operator()(_Tp&& __t, _Up&& __u) const
-      noexcept(noexcept(swap(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u))))
-    {
-      swap(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u));
-    }
-
-    // 2.2   Otherwise, if `E1` and `E2` are lvalues of array types with equal extent and...
-    template<class _Tp, class _Up, size_t _Size>
-      requires __swappable_arrays<_Tp, _Up, _Size>
-    constexpr void operator()(_Tp(& __t)[_Size], _Up(& __u)[_Size]) const
-      noexcept(noexcept((*this)(*__t, *__u)))
-    {
-      // TODO(cjdb): replace with `ranges::swap_ranges`.
-      for (size_t __i = 0; __i < _Size; ++__i) {
-        (*this)(__t[__i], __u[__i]);
-      }
+// clang-format on
+
+template <class _Tp>
+concept __exchangeable =
+    !__unqualified_swappable_with<_Tp&, _Tp&> && move_constructible<_Tp> && assignable_from<_Tp&, _Tp>;
+
+struct __fn {
+  // 2.1   `S` is `(void)swap(E1, E2)`* if `E1` or `E2` has class or enumeration type and...
+  // *The name `swap` is used here unqualified.
+  template <class _Tp, class _Up>
+    requires __unqualified_swappable_with<_Tp, _Up>
+  _LIBCPP_HIDE_FROM_ABI constexpr void operator()(_Tp&& __t, _Up&& __u) const
+      noexcept(noexcept(swap(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u)))) {
+    swap(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u));
+  }
+
+  // 2.2   Otherwise, if `E1` and `E2` are lvalues of array types with equal extent and...
+  template <class _Tp, class _Up, size_t _Size>
+    requires __swappable_arrays<_Tp, _Up, _Size>
+  _LIBCPP_HIDE_FROM_ABI constexpr void operator()(_Tp (&__t)[_Size], _Up (&__u)[_Size]) const
+      noexcept(noexcept((*this)(*__t, *__u))) {
+    // TODO(cjdb): replace with `ranges::swap_ranges`.
+    for (size_t __i = 0; __i < _Size; ++__i) {
+      (*this)(__t[__i], __u[__i]);
     }
-
-    // 2.3   Otherwise, if `E1` and `E2` are lvalues of the same type `T` that models...
-    template<__exchangeable _Tp>
-    constexpr void operator()(_Tp& __x, _Tp& __y) const
-      noexcept(is_nothrow_move_constructible_v<_Tp> && is_nothrow_move_assignable_v<_Tp>)
-    {
-      __y = _VSTD::exchange(__x, _VSTD::move(__y));
-    }
-  };
+  }
+
+  // 2.3   Otherwise, if `E1` and `E2` are lvalues of the same type `T` that models...
+  template <__exchangeable _Tp>
+  _LIBCPP_HIDE_FROM_ABI constexpr void operator()(_Tp& __x, _Tp& __y) const
+      noexcept(is_nothrow_move_constructible_v<_Tp>&& is_nothrow_move_assignable_v<_Tp>) {
+    __y = _VSTD::exchange(__x, _VSTD::move(__y));
+  }
+};
 } // namespace __swap
 
 inline namespace __cpo {
-  inline constexpr auto swap = __swap::__fn{};
+inline constexpr auto swap = __swap::__fn{};
 } // namespace __cpo
 } // namespace ranges
 
-template<class _Tp>
+template <class _Tp>
 concept swappable = requires(_Tp& __a, _Tp& __b) { ranges::swap(__a, __b); };
 
-template<class _Tp, class _Up>
-concept swappable_with =
-  common_reference_with<_Tp, _Up> &&
-  requires(_Tp&& __t, _Up&& __u) {
-    ranges::swap(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Tp>(__t));
-    ranges::swap(_VSTD::forward<_Up>(__u), _VSTD::forward<_Up>(__u));
-    ranges::swap(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u));
-    ranges::swap(_VSTD::forward<_Up>(__u), _VSTD::forward<_Tp>(__t));
-  };
+template <class _Tp, class _Up>
+concept swappable_with = common_reference_with<_Tp, _Up> && requires(_Tp&& __t, _Up&& __u) {
+  ranges::swap(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Tp>(__t));
+  ranges::swap(_VSTD::forward<_Up>(__u), _VSTD::forward<_Up>(__u));
+  ranges::swap(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u));
+  ranges::swap(_VSTD::forward<_Up>(__u), _VSTD::forward<_Tp>(__t));
+};
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
+_LIBCPP_POP_MACROS
+
 #endif // _LIBCPP___CONCEPTS_SWAPPABLE_H
diff --git a/contrib/libs/cxxsupp/libcxx/include/__concepts/totally_ordered.h b/contrib/libs/cxxsupp/libcxx/include/__concepts/totally_ordered.h
index f12d26b108..186c3b430d 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__concepts/totally_ordered.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__concepts/totally_ordered.h
@@ -21,37 +21,38 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 // [concept.totallyordered]
 
-template<class _Tp, class _Up>
-concept __partially_ordered_with =
-  requires(__make_const_lvalue_ref<_Tp> __t, __make_const_lvalue_ref<_Up> __u) {
-    { __t <  __u } -> __boolean_testable;
-    { __t >  __u } -> __boolean_testable;
-    { __t <= __u } -> __boolean_testable;
-    { __t >= __u } -> __boolean_testable;
-    { __u <  __t } -> __boolean_testable;
-    { __u >  __t } -> __boolean_testable;
-    { __u <= __t } -> __boolean_testable;
-    { __u >= __t } -> __boolean_testable;
-  };
-
-template<class _Tp>
+template <class _Tp, class _Up>
+concept __partially_ordered_with = requires(__make_const_lvalue_ref<_Tp> __t, __make_const_lvalue_ref<_Up> __u) {
+  { __t < __u } -> __boolean_testable;
+  { __t > __u } -> __boolean_testable;
+  { __t <= __u } -> __boolean_testable;
+  { __t >= __u } -> __boolean_testable;
+  { __u < __t } -> __boolean_testable;
+  { __u > __t } -> __boolean_testable;
+  { __u <= __t } -> __boolean_testable;
+  { __u >= __t } -> __boolean_testable;
+};
+
+template <class _Tp>
 concept totally_ordered = equality_comparable<_Tp> && __partially_ordered_with<_Tp, _Tp>;
 
-template<class _Tp, class _Up>
+// clang-format off
+template <class _Tp, class _Up>
 concept totally_ordered_with =
-  totally_ordered<_Tp> && totally_ordered<_Up> &&
-  equality_comparable_with<_Tp, _Up> &&
-  totally_ordered<
-    common_reference_t<
-      __make_const_lvalue_ref<_Tp>,
-      __make_const_lvalue_ref<_Up>>> &&
-  __partially_ordered_with<_Tp, _Up>;
-
-#endif // _LIBCPP_STD_VER > 17
+    totally_ordered<_Tp> && totally_ordered<_Up> &&
+    equality_comparable_with<_Tp, _Up> &&
+    totally_ordered<
+        common_reference_t<
+            __make_const_lvalue_ref<_Tp>,
+            __make_const_lvalue_ref<_Up>>> &&
+    __partially_ordered_with<_Tp, _Up>;
+// clang-format on
+
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD