Split libcxx on msvc/other

1 files changed, 71 insertions, 0 deletions

diff --git a/contrib/libs/cxxsupp/libcxxmsvc/include/__compare/partial_order.h b/contrib/libs/cxxsupp/libcxxmsvc/include/__compare/partial_order.h
new file mode 100644
index 0000000000..ad29701875
--- /dev/null
+++ b/contrib/libs/cxxsupp/libcxxmsvc/include/__compare/partial_order.h
@@ -0,0 +1,71 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___COMPARE_PARTIAL_ORDER
+#define _LIBCPP___COMPARE_PARTIAL_ORDER
+
+#include <__compare/compare_three_way.h>
+#include <__compare/ordering.h>
+#include <__compare/weak_order.h>
+#include <__config>
+#include <__utility/forward.h>
+#include <__utility/priority_tag.h>
+#include <type_traits>
+
+#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
+#  pragma GCC system_header
+#endif
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+#if !defined(_LIBCPP_HAS_NO_CONCEPTS)
+
+// [cmp.alg]
+namespace __partial_order {
+    struct __fn {
+        template<class _Tp, class _Up>
+            requires is_same_v<decay_t<_Tp>, decay_t<_Up>>
+        _LIBCPP_HIDE_FROM_ABI static constexpr auto
+        __go(_Tp&& __t, _Up&& __u, __priority_tag<2>)
+            noexcept(noexcept(partial_ordering(partial_order(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u)))))
+            -> decltype(      partial_ordering(partial_order(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u))))
+            { return          partial_ordering(partial_order(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u))); }
+
+        template<class _Tp, class _Up>
+            requires is_same_v<decay_t<_Tp>, decay_t<_Up>>
+        _LIBCPP_HIDE_FROM_ABI static constexpr auto
+        __go(_Tp&& __t, _Up&& __u, __priority_tag<1>)
+            noexcept(noexcept(partial_ordering(compare_three_way()(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u)))))
+            -> decltype(      partial_ordering(compare_three_way()(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u))))
+            { return          partial_ordering(compare_three_way()(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u))); }
+
+        template<class _Tp, class _Up>
+            requires is_same_v<decay_t<_Tp>, decay_t<_Up>>
+        _LIBCPP_HIDE_FROM_ABI static constexpr auto
+        __go(_Tp&& __t, _Up&& __u, __priority_tag<0>)
+            noexcept(noexcept(partial_ordering(_VSTD::weak_order(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u)))))
+            -> decltype(      partial_ordering(_VSTD::weak_order(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u))))
+            { return          partial_ordering(_VSTD::weak_order(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u))); }
+
+        template<class _Tp, class _Up>
+        _LIBCPP_HIDE_FROM_ABI constexpr auto operator()(_Tp&& __t, _Up&& __u) const
+            noexcept(noexcept(__go(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u), __priority_tag<2>())))
+            -> decltype(      __go(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u), __priority_tag<2>()))
+            { return          __go(_VSTD::forward<_Tp>(__t), _VSTD::forward<_Up>(__u), __priority_tag<2>()); }
+    };
+} // namespace __partial_order
+
+inline namespace __cpo {
+    inline constexpr auto partial_order = __partial_order::__fn{};
+} // namespace __cpo
+
+#endif // !defined(_LIBCPP_HAS_NO_CONCEPTS)
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP___COMPARE_PARTIAL_ORDER