From 8cace3f05003c6cb4d38c36890055f03151c2ad4 Mon Sep 17 00:00:00 2001
From: Richard Qin <richard.qin.x@gmail.com>
Date: Fri, 16 Oct 2026 02:39:56 +0800
Subject: Remove old code

Signed-off-by: Richard Qin <richard.qin.x@gmail.com>
---
 third_party/libcxx/include/c++/v1/ranges | 517 -------------------------------
 1 file changed, 517 deletions(-)
 delete mode 100644 third_party/libcxx/include/c++/v1/ranges

(limited to 'third_party/libcxx/include/c++/v1/ranges')

diff --git a/third_party/libcxx/include/c++/v1/ranges b/third_party/libcxx/include/c++/v1/ranges
deleted file mode 100644
index 9f725b1..0000000
--- a/third_party/libcxx/include/c++/v1/ranges
+++ /dev/null
@@ -1,517 +0,0 @@
-// -*- C++ -*-
-//===----------------------------------------------------------------------===//
-//
-// 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_RANGES
-#define _LIBCPP_RANGES
-
-/*
-
-#include <compare>              // see [compare.syn]
-#include <initializer_list>     // see [initializer.list.syn]
-#include <iterator>             // see [iterator.synopsis]
-
-namespace std::ranges {
-  inline namespace unspecified {
-    // [range.access], range access
-    inline constexpr unspecified begin = unspecified;
-    inline constexpr unspecified end = unspecified;
-    inline constexpr unspecified cbegin = unspecified;
-    inline constexpr unspecified cend = unspecified;
-
-    inline constexpr unspecified size = unspecified;
-    inline constexpr unspecified ssize = unspecified;
-  }
-
-  // [range.range], ranges
-  template<class T>
-    concept range = see below;
-
-  template<class T>
-    inline constexpr bool enable_borrowed_range = false;
-
-  template<class T>
-    using iterator_t = decltype(ranges::begin(declval<T&>()));
-  template<range R>
-    using sentinel_t = decltype(ranges::end(declval<R&>()));
-  template<range R>
-    using range_difference_t = iter_difference_t<iterator_t<R>>;
-  template<sized_range R>
-    using range_size_t = decltype(ranges::size(declval<R&>()));
-  template<range R>
-    using range_value_t = iter_value_t<iterator_t<R>>;
-  template<range R>
-    using range_reference_t = iter_reference_t<iterator_t<R>>;
-  template<range R>
-    using range_rvalue_reference_t = iter_rvalue_reference_t<iterator_t<R>>;
-  template <range R>
-    using range_common_reference_t = iter_common_reference_t<iterator_t<R>>;
-
-  // [range.sized], sized ranges
-  template<class>
-    inline constexpr bool disable_sized_range = false;
-
-  template<class T>
-    concept sized_range = ...;
-
-  // [range.view], views
-  template<class T>
-    inline constexpr bool enable_view = ...;
-
-  struct view_base { };
-
-  template<class T>
-    concept view = ...;
-
-  // [range.refinements], other range refinements
-  template<class R, class T>
-    concept output_range = see below;
-
-  template<class T>
-    concept input_range = see below;
-
-  template<class T>
-    concept forward_range = see below;
-
-  template<class T>
-  concept bidirectional_range = see below;
-
-  template<class T>
-  concept random_access_range = see below;
-
-  template<class T>
-  concept contiguous_range = see below;
-
-  template <class _Tp>
-    concept common_range = see below;
-
-  template<class T>
-  concept viewable_range = see below;
-
-  // [range.adaptor.object], range adaptor objects
-  template<class D>
-    requires is_class_v<D> && same_as<D, remove_cv_t<D>>
-  class range_adaptor_closure { };  // Since c++23
-
-  // [view.interface], class template view_interface
-  template<class D>
-    requires is_class_v<D> && same_as<D, remove_cv_t<D>>
-  class view_interface;
-
-  // [range.subrange], sub-ranges
-  enum class subrange_kind : bool { unsized, sized };
-
-  template<input_or_output_iterator I, sentinel_for<I> S = I, subrange_kind K = see below>
-    requires (K == subrange_kind::sized || !sized_sentinel_for<S, I>)
-  class subrange;
-
-  template<class I, class S, subrange_kind K>
-    inline constexpr bool enable_borrowed_range<subrange<I, S, K>> = true;
-
-  // [range.dangling], dangling iterator handling
-  struct dangling;
-
-  // [range.elementsof], class template elements_of
-  template<range R, class Allocator = allocator<byte>>
-    struct elements_of;
-
-  template<range R>
-    using borrowed_iterator_t = see below;
-
-  template<range R>
-    using borrowed_subrange_t = see below;
-
-  // [range.elements], elements view
-  template<input_range V, size_t N>
-    requires see below
-  class elements_view;
-
-  template<class T, size_t N>
-    inline constexpr bool enable_borrowed_range<elements_view<T, N>> =
-      enable_borrowed_range<T>;
-
-  template<class R>
-    using keys_view = elements_view<R, 0>;
-  template<class R>
-    using values_view = elements_view<R, 1>;
-
-  namespace views {
-    template<size_t N>
-      inline constexpr unspecified elements = unspecified;
-    inline constexpr auto keys = elements<0>;
-    inline constexpr auto values = elements<1>;
-  }
-
-  // [range.utility.conv], range conversions
-  template<class C, input_range R, class... Args> requires (!view<C>)
-    constexpr C to(R&& r, Args&&... args);     // Since C++23
-  template<template<class...> class C, input_range R, class... Args>
-    constexpr auto to(R&& r, Args&&... args);  // Since C++23
-  template<class C, class... Args> requires (!view<C>)
-    constexpr auto to(Args&&... args);         // Since C++23
-  template<template<class...> class C, class... Args>
-    constexpr auto to(Args&&... args);         // Since C++23
-
-  // [range.empty], empty view
-  template<class T>
-    requires is_object_v<T>
-  class empty_view;
-
-  template<class T>
-    inline constexpr bool enable_borrowed_range<empty_view<T>> = true;
-
-  namespace views {
-    template<class T>
-      inline constexpr empty_view<T> empty{};
-  }
-
-  // [range.all], all view
-  namespace views {
-    inline constexpr unspecified all = unspecified;
-
-    template<viewable_range R>
-      using all_t = decltype(all(declval<R>()));
-  }
-
-  template<range R>
-    requires is_object_v<R>
-  class ref_view;
-
-  template<class T>
-    inline constexpr bool enable_borrowed_range<ref_view<T>> = true;
-
-  template<range R>
-    requires see below
-  class owning_view;
-
-  template<class T>
-    inline constexpr bool enable_borrowed_range<owning_view<T>> = enable_borrowed_range<T>;
-
-  // [range.filter], filter view
-  template<input_range V, indirect_unary_predicate<iterator_t<V>> Pred>
-    requires view<V> && is_object_v<Pred>
-  class filter_view;
-
-  namespace views {
-    inline constexpr unspecified filter = unspecified;
-  }
-
-  // [range.drop], drop view
-  template<view V>
-    class drop_view;
-
-  template<class T>
-    inline constexpr bool enable_borrowed_range<drop_view<T>> = enable_borrowed_range<T>;
-
-  // [range.drop.while], drop while view
-  template<view V, class Pred>
-    requires input_range<V> && is_object_v<Pred> &&
-             indirect_unary_predicate<const Pred, iterator_t<V>>
-    class drop_while_view;
-
-  template<class T, class Pred>
-    inline constexpr bool enable_borrowed_range<drop_while_view<T, Pred>> =
-      enable_borrowed_range<T>;
-
-  namespace views { inline constexpr unspecified drop_while = unspecified; }
-
-  // [range.transform], transform view
-  template<input_range V, copy_constructible F>
-    requires view<V> && is_object_v<F> &&
-             regular_invocable<F&, range_reference_t<V>> &&
-             can-reference<invoke_result_t<F&, range_reference_t<V>>>
-  class transform_view;
-
-  // [range.counted], counted view
-  namespace views { inline constexpr unspecified counted = unspecified; }
-
-  // [range.common], common view
-  template<view V>
-    requires (!common_range<V> && copyable<iterator_t<V>>)
-  class common_view;
-
- // [range.reverse], reverse view
-  template<view V>
-    requires bidirectional_range<V>
-  class reverse_view;
-
-  template<class T>
-    inline constexpr bool enable_borrowed_range<reverse_view<T>> = enable_borrowed_range<T>;
-
-  template<class T>
-  inline constexpr bool enable_borrowed_range<common_view<T>> = enable_borrowed_range<T>;
-
-   // [range.take], take view
-  template<view> class take_view;
-
-  template<class T>
-  inline constexpr bool enable_borrowed_range<take_view<T>> = enable_borrowed_range<T>;
-
-    // [range.take.while], take while view
-  template<view V, class Pred>
-    requires input_range<V> && is_object_v<Pred> &&
-             indirect_unary_predicate<const Pred, iterator_t<V>>
-    class take_while_view;
-
-  namespace views { inline constexpr unspecified take_while = unspecified; }
-
-  template<copy_constructible T>
-    requires is_object_v<T>
-  class single_view;
-
-  template<weakly_incrementable W, semiregular Bound = unreachable_sentinel_t>
-    requires weakly-equality-comparable-with<W, Bound> && copyable<W>
-  class iota_view;
-
-  template<class W, class Bound>
-    inline constexpr bool enable_borrowed_range<iota_view<W, Bound>> = true;
-
-  namespace views {
-    inline constexpr unspecified iota = unspecified;
-    inline constexpr unspecified indices = unspecified; // Since C++26
-  }
-
-  // [range.repeat], repeat view
-  template<class T>
-    concept integer-like-with-usable-difference-type =  // exposition only
-      is-signed-integer-like<T> || (is-integer-like<T> && weakly_incrementable<T>);
-
-  template<move_constructible T, semiregular Bound = unreachable_sentinel_t>
-    requires (is_object_v<T> && same_as<T, remove_cv_t<T>> &&
-              (integer-like-with-usable-difference-type<Bound> ||
-               same_as<Bound, unreachable_sentinel_t>))
-  class repeat_view;
-
-  namespace views { inline constexpr unspecified repeat = unspecified; }
-
-  // [range.join], join view
-  template<input_range V>
-    requires view<V> && input_range<range_reference_t<V>>
-  class join_view;
-
-  // [range.join.with], join with view
-  template<input_range V, forward_range Pattern>
-    requires view<V> && input_range<range_reference_t<V>>
-          && view<Pattern>
-          && concatable<range_reference_t<V>, Pattern>
-  class join_with_view;                                                     // since C++23
-
-  namespace views { inline constexpr unspecified join_with = unspecified; } // since C++23
-
-  // [range.lazy.split], lazy split view
-  template<class R>
-    concept tiny-range = see below;   // exposition only
-
-  template<input_range V, forward_range Pattern>
-    requires view<V> && view<Pattern> &&
-             indirectly_comparable<iterator_t<V>, iterator_t<Pattern>, ranges::equal_to> &&
-             (forward_range<V> || tiny-range<Pattern>)
-  class lazy_split_view;
-
-  // [range.split], split view
-  template<forward_range V, forward_range Pattern>
-    requires view<V> && view<Pattern> &&
-             indirectly_comparable<iterator_t<V>, iterator_t<Pattern>, ranges::equal_to>
-  class split_view;
-
-  namespace views {
-    inline constexpr unspecified lazy_split = unspecified;
-    inline constexpr unspecified split = unspecified;
-  }
-
-  // [range.istream], istream view
-  template<movable Val, class CharT, class Traits = char_traits<CharT>>
-    requires see below
-  class basic_istream_view;
-
-  template<class Val>
-    using istream_view = basic_istream_view<Val, char>;
-
-  template<class Val>
-    using wistream_view = basic_istream_view<Val, wchar_t>;
-
-  namespace views { template<class T> inline constexpr unspecified istream = unspecified; }
-
-  // [range.zip], zip view
-  template<input_range... Views>
-    requires (view<Views> && ...) && (sizeof...(Views) > 0)
-  class zip_view;        // C++23
-
-  template<class... Views>
-    inline constexpr bool enable_borrowed_range<zip_view<Views...>> =       // C++23
-      (enable_borrowed_range<Views> && ...);
-
-  namespace views { inline constexpr unspecified zip = unspecified; }       // C++23
-
-  // [range.zip.transform], zip transform view
-  template<move_constructible F, input_range... Views>
-    requires (view<Views> && ...) && (sizeof...(Views) > 0) && is_object_v<F> &&
-             regular_invocable<F&, range_reference_t<Views>...> &&
-             can-reference<invoke_result_t<F&, range_reference_t<Views>...>>
-  class zip_transform_view;                                                         // C++23
-
-  namespace views { inline constexpr unspecified zip_transform = unspecified; }     // C++23
-
-  // [range.adjacent], adjacent view
-  template<forward_range V, size_t N>
-    requires view<V> && (N > 0)
-  class adjacent_view;
-
-  template<class V, size_t N>
-    constexpr bool enable_borrowed_range<adjacent_view<V, N>> =
-      enable_borrowed_range<V>;
-
-  namespace views {
-    template<size_t N>
-      constexpr unspecified adjacent = unspecified;
-    inline constexpr auto pairwise = adjacent<2>;
-  }
-
-  // [range.adjacent.transform], adjacent transform view
-  template<forward_range V, move_constructible F, size_t N>
-    requires see below
-  class adjacent_transform_view;
-
-  namespace views {
-    template<size_t N>
-      constexpr unspecified adjacent_transform = unspecified;
-    inline constexpr auto pairwise_transform = adjacent_transform<2>;
-  }
-
-  // [range.as.rvalue]
-  template <view V>
-    requires input_range<V>
-  class as_rvalue_view;                                                     // C++23
-
-  namespace views { inline constexpr unspecified as_rvalue ) unspecified; } // C++23
-
-  [range.chunk.by]
-  template<forward_range V, indirect_binary_predicate<iterator_t<V>, iterator_t<V>> Pred>
-    requires view<V> && is_object_v<Pred>
-  class chunk_by_view;                                                      // C++23
-
-  namespace views { inline constexpr unspecified chunk_by = unspecified; }  // C++23
-}
-
-namespace std {
-  namespace views = ranges::views;
-
-  template<class T> struct tuple_size;
-  template<size_t I, class T> struct tuple_element;
-
-  template<class I, class S, ranges::subrange_kind K>
-  struct tuple_size<ranges::subrange<I, S, K>>
-    : integral_constant<size_t, 2> {};
-
-  template<class I, class S, ranges::subrange_kind K>
-  struct tuple_element<0, ranges::subrange<I, S, K>> {
-    using type = I;
-  };
-
-  template<class I, class S, ranges::subrange_kind K>
-  struct tuple_element<1, ranges::subrange<I, S, K>> {
-    using type = S;
-  };
-
-  template<class I, class S, ranges::subrange_kind K>
-  struct tuple_element<0, const ranges::subrange<I, S, K>> {
-    using type = I;
-  };
-
-  template<class I, class S, ranges::subrange_kind K>
-  struct tuple_element<1, const ranges::subrange<I, S, K>> {
-    using type = S;
-  };
-
-  struct from_range_t { explicit from_range_t() = default; };  // Since C++23
-  inline constexpr from_range_t from_range{};                  // Since C++23
-}
-*/
-
-#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
-#  include <__cxx03/__config>
-#else
-#  include <__config>
-
-#  if _LIBCPP_STD_VER >= 20
-#    include <__ranges/access.h>
-#    include <__ranges/all.h>
-#    include <__ranges/common_view.h>
-#    include <__ranges/concepts.h>
-#    include <__ranges/counted.h>
-#    include <__ranges/dangling.h>
-#    include <__ranges/data.h>
-#    include <__ranges/drop_view.h>
-#    include <__ranges/drop_while_view.h>
-#    include <__ranges/elements_of.h>
-#    include <__ranges/elements_view.h>
-#    include <__ranges/empty.h>
-#    include <__ranges/empty_view.h>
-#    include <__ranges/enable_borrowed_range.h>
-#    include <__ranges/enable_view.h>
-#    include <__ranges/filter_view.h>
-#    include <__ranges/iota_view.h>
-#    include <__ranges/join_view.h>
-#    include <__ranges/lazy_split_view.h>
-#    include <__ranges/rbegin.h>
-#    include <__ranges/ref_view.h>
-#    include <__ranges/rend.h>
-#    include <__ranges/reverse_view.h>
-#    include <__ranges/single_view.h>
-#    include <__ranges/size.h>
-#    include <__ranges/split_view.h>
-#    include <__ranges/subrange.h>
-#    include <__ranges/take_view.h>
-#    include <__ranges/take_while_view.h>
-#    include <__ranges/transform_view.h>
-#    include <__ranges/view_interface.h>
-#    include <__ranges/views.h>
-
-#    if _LIBCPP_HAS_LOCALIZATION
-#      include <__ranges/istream_view.h>
-#    endif
-#  endif
-
-#  if _LIBCPP_STD_VER >= 23
-#    include <__ranges/adjacent_transform_view.h>
-#    include <__ranges/adjacent_view.h>
-#    include <__ranges/as_rvalue_view.h>
-#    include <__ranges/chunk_by_view.h>
-#    include <__ranges/from_range.h>
-#    include <__ranges/join_with_view.h>
-#    include <__ranges/repeat_view.h>
-#    include <__ranges/to.h>
-#    include <__ranges/zip_transform_view.h>
-#    include <__ranges/zip_view.h>
-#  endif
-
-#  include <version>
-
-// standard-mandated includes
-
-// [ranges.syn]
-#  include <compare>
-#  include <initializer_list>
-#  include <iterator>
-
-// [tuple.helper]
-#  include <__tuple/tuple_element.h>
-#  include <__tuple/tuple_size.h>
-
-#  if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-#    pragma GCC system_header
-#  endif
-
-#  if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
-#    include <cstdlib>
-#    include <iosfwd>
-#    include <type_traits>
-#  endif
-#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
-
-#endif // _LIBCPP_RANGES
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