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authorRichard Qin <richard.qin.x@gmail.com>2026-10-16 02:39:56 +0800
committerRichard Qin <richard.qin.x@gmail.com>2026-10-16 02:39:56 +0800
commit8cace3f05003c6cb4d38c36890055f03151c2ad4 (patch)
treeaa739deaac0266f17c4e91b333957501cb1ea2e9 /third_party/libcxx/include/c++/v1/__fwd
parent3ad39e9878310e5317ee73c9b353c1e2c1c5c4ee (diff)
downloadlume-8cace3f05003c6cb4d38c36890055f03151c2ad4.tar.gz
lume-8cace3f05003c6cb4d38c36890055f03151c2ad4.tar.xz
Remove old code
Signed-off-by: Richard Qin <richard.qin.x@gmail.com>
Diffstat (limited to 'third_party/libcxx/include/c++/v1/__fwd')
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/array.h47
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/bit_reference.h44
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/byte.h26
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/complex.h42
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/deque.h26
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/format.h55
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/fstream.h53
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/functional.h35
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/get.h24
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/ios.h43
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/istream.h43
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/mdspan.h57
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/memory.h28
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/memory_resource.h31
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/ostream.h35
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/pair.h51
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/queue.h31
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/span.h38
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/sstream.h58
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/stack.h26
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/streambuf.h35
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/string.h107
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/string_view.h50
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/subrange.h49
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/tuple.h66
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/variant.h68
-rw-r--r--third_party/libcxx/include/c++/v1/__fwd/vector.h29
27 files changed, 0 insertions, 1197 deletions
diff --git a/third_party/libcxx/include/c++/v1/__fwd/array.h b/third_party/libcxx/include/c++/v1/__fwd/array.h
deleted file mode 100644
index 476de88..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/array.h
+++ /dev/null
@@ -1,47 +0,0 @@
-//===---------------------------------------------------------------------===//
-//
-// 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___FWD_ARRAY_H
-#define _LIBCPP___FWD_ARRAY_H
-
-#include <__config>
-#include <__cstddef/size_t.h>
-#include <__type_traits/integral_constant.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _Tp, size_t _Size>
-struct array;
-
-template <size_t _Ip, class _Tp, size_t _Size>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 _Tp& get(array<_Tp, _Size>&) _NOEXCEPT;
-
-template <size_t _Ip, class _Tp, size_t _Size>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const _Tp& get(const array<_Tp, _Size>&) _NOEXCEPT;
-
-#ifndef _LIBCPP_CXX03_LANG
-template <size_t _Ip, class _Tp, size_t _Size>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 _Tp&& get(array<_Tp, _Size>&&) _NOEXCEPT;
-
-template <size_t _Ip, class _Tp, size_t _Size>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const _Tp&& get(const array<_Tp, _Size>&&) _NOEXCEPT;
-#endif
-
-template <class _Tp>
-inline const bool __is_std_array_v = false;
-
-template <class _Tp, size_t _Size>
-inline const bool __is_std_array_v<array<_Tp, _Size> > = true;
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_ARRAY_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/bit_reference.h b/third_party/libcxx/include/c++/v1/__fwd/bit_reference.h
deleted file mode 100644
index 36058d5..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/bit_reference.h
+++ /dev/null
@@ -1,44 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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___FWD_BIT_REFERENCE_H
-#define _LIBCPP___FWD_BIT_REFERENCE_H
-
-#include <__config>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _Cp, bool _IsConst, typename _Cp::__storage_type = 0>
-class __bit_iterator;
-
-template <class _Cp>
-struct __bit_array;
-
-template <class, class = void>
-struct __size_difference_type_traits;
-
-template <class _StoragePointer>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 void
-__fill_masked_range(_StoragePointer __word, unsigned __clz, unsigned __ctz, bool __fill_val);
-
-template <class _StorageType>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _StorageType __trailing_mask(unsigned __clz);
-
-template <class _StorageType>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _StorageType __leading_mask(unsigned __ctz);
-
-template <class _StorageType>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _StorageType __middle_mask(unsigned __clz, unsigned __ctz);
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_BIT_REFERENCE_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/byte.h b/third_party/libcxx/include/c++/v1/__fwd/byte.h
deleted file mode 100644
index 6f2d6ae..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/byte.h
+++ /dev/null
@@ -1,26 +0,0 @@
-//===---------------------------------------------------------------------===//
-//
-// 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___FWD_BYTE_H
-#define _LIBCPP___FWD_BYTE_H
-
-#include <__config>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-#if _LIBCPP_STD_VER >= 17
-_LIBCPP_BEGIN_UNVERSIONED_NAMESPACE_STD
-
-enum class byte : unsigned char;
-
-_LIBCPP_END_UNVERSIONED_NAMESPACE_STD
-#endif // _LIBCPP_STD_VER >= 17
-
-#endif // _LIBCPP___FWD_BYTE_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/complex.h b/third_party/libcxx/include/c++/v1/__fwd/complex.h
deleted file mode 100644
index ff3c5c1..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/complex.h
+++ /dev/null
@@ -1,42 +0,0 @@
-//===---------------------------------------------------------------------===//
-//
-// 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___FWD_COMPLEX_H
-#define _LIBCPP___FWD_COMPLEX_H
-
-#include <__config>
-#include <__cstddef/size_t.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _Tp>
-class complex;
-
-#if _LIBCPP_STD_VER >= 26
-
-template <size_t _Ip, class _Tp>
-_LIBCPP_HIDE_FROM_ABI constexpr _Tp& get(complex<_Tp>&) noexcept;
-
-template <size_t _Ip, class _Tp>
-_LIBCPP_HIDE_FROM_ABI constexpr _Tp&& get(complex<_Tp>&&) noexcept;
-
-template <size_t _Ip, class _Tp>
-_LIBCPP_HIDE_FROM_ABI constexpr const _Tp& get(const complex<_Tp>&) noexcept;
-
-template <size_t _Ip, class _Tp>
-_LIBCPP_HIDE_FROM_ABI constexpr const _Tp&& get(const complex<_Tp>&&) noexcept;
-
-#endif // _LIBCPP_STD_VER >= 26
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_COMPLEX_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/deque.h b/third_party/libcxx/include/c++/v1/__fwd/deque.h
deleted file mode 100644
index 35877a7..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/deque.h
+++ /dev/null
@@ -1,26 +0,0 @@
-//===---------------------------------------------------------------------===//
-//
-// 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___FWD_DEQUE_H
-#define _LIBCPP___FWD_DEQUE_H
-
-#include <__config>
-#include <__fwd/memory.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _Tp, class _Allocator = allocator<_Tp> >
-class deque;
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_DEQUE_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/format.h b/third_party/libcxx/include/c++/v1/__fwd/format.h
deleted file mode 100644
index e9d1536..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/format.h
+++ /dev/null
@@ -1,55 +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___FWD_FORMAT_H
-#define _LIBCPP___FWD_FORMAT_H
-
-#include <__config>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-#if _LIBCPP_STD_VER >= 20
-
-template <class _Context>
-class basic_format_arg;
-
-template <class _OutIt, class _CharT>
-class basic_format_context;
-
-template <class _Tp, class _CharT = char>
-struct formatter;
-
-# if _LIBCPP_STD_VER >= 23
-
-_LIBCPP_DIAGNOSTIC_PUSH
-_LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wshadow")
-_LIBCPP_GCC_DIAGNOSTIC_IGNORED("-Wshadow")
-// This shadows map, set, and string.
-enum class range_format { disabled, map, set, sequence, string, debug_string };
-_LIBCPP_DIAGNOSTIC_POP
-
-template <class _Rp>
-constexpr range_format format_kind = [] {
- // [format.range.fmtkind]/1
- // A program that instantiates the primary template of format_kind is ill-formed.
- static_assert(sizeof(_Rp) != sizeof(_Rp), "create a template specialization of format_kind for your type");
- return range_format::disabled;
-}();
-
-# endif // _LIBCPP_STD_VER >= 23
-
-#endif // _LIBCPP_STD_VER >= 20
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_FORMAT_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/fstream.h b/third_party/libcxx/include/c++/v1/__fwd/fstream.h
deleted file mode 100644
index 34a14df..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/fstream.h
+++ /dev/null
@@ -1,53 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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___FWD_FSTREAM_H
-#define _LIBCPP___FWD_FSTREAM_H
-
-#include <__config>
-#include <__fwd/string.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _CharT, class _Traits = char_traits<_CharT> >
-class basic_filebuf;
-template <class _CharT, class _Traits = char_traits<_CharT> >
-class basic_ifstream;
-template <class _CharT, class _Traits = char_traits<_CharT> >
-class basic_ofstream;
-template <class _CharT, class _Traits = char_traits<_CharT> >
-class basic_fstream;
-
-using filebuf = basic_filebuf<char>;
-using ifstream = basic_ifstream<char>;
-using ofstream = basic_ofstream<char>;
-using fstream = basic_fstream<char>;
-
-#if _LIBCPP_HAS_WIDE_CHARACTERS
-using wfilebuf = basic_filebuf<wchar_t>;
-using wifstream = basic_ifstream<wchar_t>;
-using wofstream = basic_ofstream<wchar_t>;
-using wfstream = basic_fstream<wchar_t>;
-#endif
-
-template <class _CharT, class _Traits>
-class _LIBCPP_PREFERRED_NAME(filebuf) _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wfilebuf)) basic_filebuf;
-template <class _CharT, class _Traits>
-class _LIBCPP_PREFERRED_NAME(ifstream) _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wifstream)) basic_ifstream;
-template <class _CharT, class _Traits>
-class _LIBCPP_PREFERRED_NAME(ofstream) _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wofstream)) basic_ofstream;
-template <class _CharT, class _Traits>
-class _LIBCPP_PREFERRED_NAME(fstream) _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wfstream)) basic_fstream;
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_FSTREAM_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/functional.h b/third_party/libcxx/include/c++/v1/__fwd/functional.h
deleted file mode 100644
index a8c6024..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/functional.h
+++ /dev/null
@@ -1,35 +0,0 @@
-//===---------------------------------------------------------------------===//
-//
-// 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___FWD_FUNCTIONAL_H
-#define _LIBCPP___FWD_FUNCTIONAL_H
-
-#include <__config>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-#if _LIBCPP_STD_VER >= 14
-template <class _Tp = void>
-#else
-template <class _Tp>
-#endif
-struct less;
-
-template <class>
-struct hash;
-
-template <class>
-class reference_wrapper;
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_FUNCTIONAL_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/get.h b/third_party/libcxx/include/c++/v1/__fwd/get.h
deleted file mode 100644
index 6121ed0..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/get.h
+++ /dev/null
@@ -1,24 +0,0 @@
-//===---------------------------------------------------------------------===//
-//
-// 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___FWD_GET_H
-#define _LIBCPP___FWD_GET_H
-
-#include <__config>
-#include <__fwd/array.h>
-#include <__fwd/complex.h>
-#include <__fwd/pair.h>
-#include <__fwd/subrange.h>
-#include <__fwd/tuple.h>
-#include <__fwd/variant.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-#endif // _LIBCPP___FWD_GET_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/ios.h b/third_party/libcxx/include/c++/v1/__fwd/ios.h
deleted file mode 100644
index fd6738a..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/ios.h
+++ /dev/null
@@ -1,43 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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___FWD_IOS_H
-#define _LIBCPP___FWD_IOS_H
-
-#include <__config>
-#include <__fwd/string.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-class _LIBCPP_EXPORTED_FROM_ABI ios_base;
-
-template <class _CharT, class _Traits = char_traits<_CharT> >
-class basic_ios;
-
-using ios = basic_ios<char>;
-#if _LIBCPP_HAS_WIDE_CHARACTERS
-using wios = basic_ios<wchar_t>;
-#endif
-
-template <class _CharT, class _Traits>
-class _LIBCPP_PREFERRED_NAME(ios) _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wios)) basic_ios;
-
-#if _LIBCPP_LIBC_NEWLIB
-// On newlib, off_t is 'long int'
-using streamoff = long int; // for char_traits in <string>
-#else
-using streamoff = long long; // for char_traits in <string>
-#endif
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_IOS_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/istream.h b/third_party/libcxx/include/c++/v1/__fwd/istream.h
deleted file mode 100644
index 91c21c1..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/istream.h
+++ /dev/null
@@ -1,43 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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___FWD_ISTREAM_H
-#define _LIBCPP___FWD_ISTREAM_H
-
-#include <__config>
-#include <__fwd/string.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _CharT, class _Traits = char_traits<_CharT> >
-class basic_istream;
-
-template <class _CharT, class _Traits = char_traits<_CharT> >
-class basic_iostream;
-
-using istream = basic_istream<char>;
-using iostream = basic_iostream<char>;
-
-#if _LIBCPP_HAS_WIDE_CHARACTERS
-using wistream = basic_istream<wchar_t>;
-using wiostream = basic_iostream<wchar_t>;
-#endif
-
-template <class _CharT, class _Traits>
-class _LIBCPP_PREFERRED_NAME(istream) _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wistream)) basic_istream;
-
-template <class _CharT, class _Traits>
-class _LIBCPP_PREFERRED_NAME(iostream) _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wiostream)) basic_iostream;
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_ISTREAM_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/mdspan.h b/third_party/libcxx/include/c++/v1/__fwd/mdspan.h
deleted file mode 100644
index 8889567..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/mdspan.h
+++ /dev/null
@@ -1,57 +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
-//
-// Kokkos v. 4.0
-// Copyright (2022) National Technology & Engineering
-// Solutions of Sandia, LLC (NTESS).
-//
-// Under the terms of Contract DE-NA0003525 with NTESS,
-// the U.S. Government retains certain rights in this software.
-//
-//===---------------------------------------------------------------------===//
-
-#ifndef _LIBCPP___MDSPAN_LAYOUTS_H
-#define _LIBCPP___MDSPAN_LAYOUTS_H
-
-#include <__config>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-#if _LIBCPP_STD_VER >= 23
-
-// Layout policy with a mapping which corresponds to FORTRAN-style array layouts
-struct layout_left {
- template <class _Extents>
- class mapping;
-};
-
-// Layout policy with a mapping which corresponds to C-style array layouts
-struct layout_right {
- template <class _Extents>
- class mapping;
-};
-
-// Layout policy with a unique mapping where strides are arbitrary
-struct layout_stride {
- template <class _Extents>
- class mapping;
-};
-
-#endif // _LIBCPP_STD_VER >= 23
-
-_LIBCPP_END_NAMESPACE_STD
-
-_LIBCPP_POP_MACROS
-
-#endif // _LIBCPP___MDSPAN_LAYOUTS_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/memory.h b/third_party/libcxx/include/c++/v1/__fwd/memory.h
deleted file mode 100644
index 09ab5d8..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/memory.h
+++ /dev/null
@@ -1,28 +0,0 @@
-//===---------------------------------------------------------------------===//
-//
-// 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___FWD_MEMORY_H
-#define _LIBCPP___FWD_MEMORY_H
-
-#include <__config>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _Tp>
-class allocator;
-
-template <class _Tp>
-class shared_ptr;
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_MEMORY_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/memory_resource.h b/third_party/libcxx/include/c++/v1/__fwd/memory_resource.h
deleted file mode 100644
index dc5a7cc..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/memory_resource.h
+++ /dev/null
@@ -1,31 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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___FWD_MEMORY_RESOURCE_H
-#define _LIBCPP___FWD_MEMORY_RESOURCE_H
-
-#include <__config>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-#if _LIBCPP_STD_VER >= 17
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-namespace pmr {
-template <class _ValueType>
-class _LIBCPP_AVAILABILITY_PMR polymorphic_allocator;
-} // namespace pmr
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP_STD_VER >= 17
-
-#endif // _LIBCPP___FWD_MEMORY_RESOURCE_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/ostream.h b/third_party/libcxx/include/c++/v1/__fwd/ostream.h
deleted file mode 100644
index 9ceb02d..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/ostream.h
+++ /dev/null
@@ -1,35 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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___FWD_OSTREAM_H
-#define _LIBCPP___FWD_OSTREAM_H
-
-#include <__config>
-#include <__fwd/string.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _CharT, class _Traits = char_traits<_CharT> >
-class basic_ostream;
-
-using ostream = basic_ostream<char>;
-
-#if _LIBCPP_HAS_WIDE_CHARACTERS
-using wostream = basic_ostream<wchar_t>;
-#endif
-
-template <class _CharT, class _Traits>
-class _LIBCPP_PREFERRED_NAME(ostream) _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wostream)) basic_ostream;
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_OSTREAM_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/pair.h b/third_party/libcxx/include/c++/v1/__fwd/pair.h
deleted file mode 100644
index cf07eab..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/pair.h
+++ /dev/null
@@ -1,51 +0,0 @@
-//===---------------------------------------------------------------------===//
-//
-// 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___FWD_PAIR_H
-#define _LIBCPP___FWD_PAIR_H
-
-#include <__config>
-#include <__cstddef/size_t.h>
-#include <__fwd/tuple.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class, class>
-struct pair;
-
-template <class _Type>
-inline const bool __is_pair_v = false;
-
-template <class _Type1, class _Type2>
-inline const bool __is_pair_v<pair<_Type1, _Type2> > = true;
-
-template <size_t _Ip, class _T1, class _T2>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Ip, pair<_T1, _T2> >::type&
-get(pair<_T1, _T2>&) _NOEXCEPT;
-
-template <size_t _Ip, class _T1, class _T2>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Ip, pair<_T1, _T2> >::type&
-get(const pair<_T1, _T2>&) _NOEXCEPT;
-
-#ifndef _LIBCPP_CXX03_LANG
-template <size_t _Ip, class _T1, class _T2>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Ip, pair<_T1, _T2> >::type&&
-get(pair<_T1, _T2>&&) _NOEXCEPT;
-
-template <size_t _Ip, class _T1, class _T2>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Ip, pair<_T1, _T2> >::type&&
-get(const pair<_T1, _T2>&&) _NOEXCEPT;
-#endif
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_PAIR_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/queue.h b/third_party/libcxx/include/c++/v1/__fwd/queue.h
deleted file mode 100644
index d32730d..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/queue.h
+++ /dev/null
@@ -1,31 +0,0 @@
-//===---------------------------------------------------------------------===//
-//
-// 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___FWD_QUEUE_H
-#define _LIBCPP___FWD_QUEUE_H
-
-#include <__config>
-#include <__functional/operations.h>
-#include <__fwd/deque.h>
-#include <__fwd/vector.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _Tp, class _Container = deque<_Tp> >
-class queue;
-
-template <class _Tp, class _Container = vector<_Tp>, class _Compare = less<typename _Container::value_type> >
-class priority_queue;
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_QUEUE_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/span.h b/third_party/libcxx/include/c++/v1/__fwd/span.h
deleted file mode 100644
index 5d473ee..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/span.h
+++ /dev/null
@@ -1,38 +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___FWD_SPAN_H
-#define _LIBCPP___FWD_SPAN_H
-
-#include <__config>
-#include <__cstddef/size_t.h>
-#include <limits>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-#if _LIBCPP_STD_VER >= 20
-
-inline constexpr size_t dynamic_extent = numeric_limits<size_t>::max();
-template <typename _Tp, size_t _Extent = dynamic_extent>
-class span;
-
-#endif
-
-_LIBCPP_END_NAMESPACE_STD
-
-_LIBCPP_POP_MACROS
-
-#endif // _LIBCPP___FWD_SPAN_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/sstream.h b/third_party/libcxx/include/c++/v1/__fwd/sstream.h
deleted file mode 100644
index fe637d8..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/sstream.h
+++ /dev/null
@@ -1,58 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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___FWD_SSTREAM_H
-#define _LIBCPP___FWD_SSTREAM_H
-
-#include <__config>
-#include <__fwd/memory.h>
-#include <__fwd/string.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _CharT, class _Traits = char_traits<_CharT>, class _Allocator = allocator<_CharT> >
-class basic_stringbuf;
-
-template <class _CharT, class _Traits = char_traits<_CharT>, class _Allocator = allocator<_CharT> >
-class basic_istringstream;
-template <class _CharT, class _Traits = char_traits<_CharT>, class _Allocator = allocator<_CharT> >
-class basic_ostringstream;
-template <class _CharT, class _Traits = char_traits<_CharT>, class _Allocator = allocator<_CharT> >
-class basic_stringstream;
-
-using stringbuf = basic_stringbuf<char>;
-using istringstream = basic_istringstream<char>;
-using ostringstream = basic_ostringstream<char>;
-using stringstream = basic_stringstream<char>;
-
-#if _LIBCPP_HAS_WIDE_CHARACTERS
-using wstringbuf = basic_stringbuf<wchar_t>;
-using wistringstream = basic_istringstream<wchar_t>;
-using wostringstream = basic_ostringstream<wchar_t>;
-using wstringstream = basic_stringstream<wchar_t>;
-#endif
-
-template <class _CharT, class _Traits, class _Allocator>
-class _LIBCPP_PREFERRED_NAME(stringbuf) _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wstringbuf)) basic_stringbuf;
-template <class _CharT, class _Traits, class _Allocator>
-class _LIBCPP_PREFERRED_NAME(istringstream)
- _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wistringstream)) basic_istringstream;
-template <class _CharT, class _Traits, class _Allocator>
-class _LIBCPP_PREFERRED_NAME(ostringstream)
- _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wostringstream)) basic_ostringstream;
-template <class _CharT, class _Traits, class _Allocator>
-class _LIBCPP_PREFERRED_NAME(stringstream)
- _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wstringstream)) basic_stringstream;
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_SSTREAM_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/stack.h b/third_party/libcxx/include/c++/v1/__fwd/stack.h
deleted file mode 100644
index 922f03e..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/stack.h
+++ /dev/null
@@ -1,26 +0,0 @@
-//===---------------------------------------------------------------------===//
-//
-// 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___FWD_STACK_H
-#define _LIBCPP___FWD_STACK_H
-
-#include <__config>
-#include <__fwd/deque.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _Tp, class _Container = deque<_Tp> >
-class stack;
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_STACK_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/streambuf.h b/third_party/libcxx/include/c++/v1/__fwd/streambuf.h
deleted file mode 100644
index d3d9d46..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/streambuf.h
+++ /dev/null
@@ -1,35 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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___FWD_STREAMBUF_H
-#define _LIBCPP___FWD_STREAMBUF_H
-
-#include <__config>
-#include <__fwd/string.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _CharT, class _Traits = char_traits<_CharT> >
-class basic_streambuf;
-
-using streambuf = basic_streambuf<char>;
-
-#if _LIBCPP_HAS_WIDE_CHARACTERS
-using wstreambuf = basic_streambuf<wchar_t>;
-#endif
-
-template <class _CharT, class _Traits>
-class _LIBCPP_PREFERRED_NAME(streambuf) _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wstreambuf)) basic_streambuf;
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_STREAMBUF_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/string.h b/third_party/libcxx/include/c++/v1/__fwd/string.h
deleted file mode 100644
index 254d0c8..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/string.h
+++ /dev/null
@@ -1,107 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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___FWD_STRING_H
-#define _LIBCPP___FWD_STRING_H
-
-#include <__config>
-#include <__fwd/memory.h>
-#include <__fwd/memory_resource.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _CharT>
-struct char_traits;
-template <>
-struct char_traits<char>;
-
-#if _LIBCPP_HAS_CHAR8_T
-template <>
-struct char_traits<char8_t>;
-#endif
-
-template <>
-struct char_traits<char16_t>;
-template <>
-struct char_traits<char32_t>;
-
-#if _LIBCPP_HAS_WIDE_CHARACTERS
-template <>
-struct char_traits<wchar_t>;
-#endif
-
-template <class _CharT, class _Traits = char_traits<_CharT>, class _Allocator = allocator<_CharT> >
-class basic_string;
-
-using string = basic_string<char>;
-
-#if _LIBCPP_HAS_WIDE_CHARACTERS
-using wstring = basic_string<wchar_t>;
-#endif
-
-#if _LIBCPP_HAS_CHAR8_T
-using u8string = basic_string<char8_t>;
-#endif
-
-using u16string = basic_string<char16_t>;
-using u32string = basic_string<char32_t>;
-
-#if _LIBCPP_STD_VER >= 17
-
-namespace pmr {
-template <class _CharT, class _Traits = char_traits<_CharT>>
-using basic_string _LIBCPP_AVAILABILITY_PMR = std::basic_string<_CharT, _Traits, polymorphic_allocator<_CharT>>;
-
-using string _LIBCPP_AVAILABILITY_PMR = basic_string<char>;
-
-# if _LIBCPP_HAS_WIDE_CHARACTERS
-using wstring _LIBCPP_AVAILABILITY_PMR = basic_string<wchar_t>;
-# endif
-
-# if _LIBCPP_HAS_CHAR8_T
-using u8string _LIBCPP_AVAILABILITY_PMR = basic_string<char8_t>;
-# endif
-
-using u16string _LIBCPP_AVAILABILITY_PMR = basic_string<char16_t>;
-using u32string _LIBCPP_AVAILABILITY_PMR = basic_string<char32_t>;
-} // namespace pmr
-
-#endif // _LIBCPP_STD_VER >= 17
-
-// clang-format off
-template <class _CharT, class _Traits, class _Allocator>
-class _LIBCPP_PREFERRED_NAME(string)
-#if _LIBCPP_HAS_WIDE_CHARACTERS
- _LIBCPP_PREFERRED_NAME(wstring)
-#endif
-#if _LIBCPP_HAS_CHAR8_T
- _LIBCPP_PREFERRED_NAME(u8string)
-#endif
- _LIBCPP_PREFERRED_NAME(u16string)
- _LIBCPP_PREFERRED_NAME(u32string)
-#if _LIBCPP_STD_VER >= 17
- _LIBCPP_PREFERRED_NAME(pmr::string)
-# if _LIBCPP_HAS_WIDE_CHARACTERS
- _LIBCPP_PREFERRED_NAME(pmr::wstring)
-# endif
-# if _LIBCPP_HAS_CHAR8_T
- _LIBCPP_PREFERRED_NAME(pmr::u8string)
-# endif
- _LIBCPP_PREFERRED_NAME(pmr::u16string)
- _LIBCPP_PREFERRED_NAME(pmr::u32string)
-#endif
- basic_string;
-// clang-format on
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_STRING_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/string_view.h b/third_party/libcxx/include/c++/v1/__fwd/string_view.h
deleted file mode 100644
index 8da963d..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/string_view.h
+++ /dev/null
@@ -1,50 +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___FWD_STRING_VIEW_H
-#define _LIBCPP___FWD_STRING_VIEW_H
-
-#include <__config>
-#include <__fwd/string.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _CharT, class _Traits = char_traits<_CharT> >
-class basic_string_view;
-
-typedef basic_string_view<char> string_view;
-#if _LIBCPP_HAS_CHAR8_T
-typedef basic_string_view<char8_t> u8string_view;
-#endif
-typedef basic_string_view<char16_t> u16string_view;
-typedef basic_string_view<char32_t> u32string_view;
-#if _LIBCPP_HAS_WIDE_CHARACTERS
-typedef basic_string_view<wchar_t> wstring_view;
-#endif
-
-// clang-format off
-template <class _CharT, class _Traits>
-class _LIBCPP_PREFERRED_NAME(string_view)
-#if _LIBCPP_HAS_WIDE_CHARACTERS
- _LIBCPP_PREFERRED_NAME(wstring_view)
-#endif
-#if _LIBCPP_HAS_CHAR8_T
- _LIBCPP_PREFERRED_NAME(u8string_view)
-#endif
- _LIBCPP_PREFERRED_NAME(u16string_view)
- _LIBCPP_PREFERRED_NAME(u32string_view)
- basic_string_view;
-// clang-format on
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_STRING_VIEW_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/subrange.h b/third_party/libcxx/include/c++/v1/__fwd/subrange.h
deleted file mode 100644
index 81db94a..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/subrange.h
+++ /dev/null
@@ -1,49 +0,0 @@
-//===---------------------------------------------------------------------===//
-//
-// 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___FWD_SUBRANGE_H
-#define _LIBCPP___FWD_SUBRANGE_H
-
-#include <__concepts/copyable.h>
-#include <__config>
-#include <__cstddef/size_t.h>
-#include <__iterator/concepts.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-#if _LIBCPP_STD_VER >= 20
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-namespace ranges {
-
-enum class subrange_kind : bool { unsized, sized };
-
-template <input_or_output_iterator _Iter, sentinel_for<_Iter> _Sent, subrange_kind _Kind>
- requires(_Kind == subrange_kind::sized || !sized_sentinel_for<_Sent, _Iter>)
-class subrange;
-
-template <size_t _Index, class _Iter, class _Sent, subrange_kind _Kind>
- requires((_Index == 0 && copyable<_Iter>) || _Index == 1)
-_LIBCPP_HIDE_FROM_ABI constexpr auto get(const subrange<_Iter, _Sent, _Kind>&);
-
-template <size_t _Index, class _Iter, class _Sent, subrange_kind _Kind>
- requires(_Index < 2)
-_LIBCPP_HIDE_FROM_ABI constexpr auto get(subrange<_Iter, _Sent, _Kind>&&);
-
-} // namespace ranges
-
-using ranges::get;
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP_STD_VER >= 20
-
-#endif // _LIBCPP___FWD_SUBRANGE_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/tuple.h b/third_party/libcxx/include/c++/v1/__fwd/tuple.h
deleted file mode 100644
index dc96c03..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/tuple.h
+++ /dev/null
@@ -1,66 +0,0 @@
-//===---------------------------------------------------------------------===//
-//
-// 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___FWD_TUPLE_H
-#define _LIBCPP___FWD_TUPLE_H
-
-#include <__config>
-#include <__cstddef/size_t.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <size_t, class>
-struct tuple_element;
-
-template <size_t _Np, class _Tp>
-using __tuple_element_t _LIBCPP_NODEBUG = typename tuple_element<_Np, _Tp>::type;
-
-#ifndef _LIBCPP_CXX03_LANG
-
-template <class...>
-class tuple;
-
-template <class>
-inline const bool __is_tuple_v = false;
-
-template <class... _Tp>
-inline const bool __is_tuple_v<tuple<_Tp...>> = true;
-
-template <size_t _Ip, class... _Tp>
-struct tuple_element<_Ip, tuple<_Tp...> > {
- using type _LIBCPP_NODEBUG = __type_pack_element<_Ip, _Tp...>;
-};
-
-template <class>
-struct tuple_size;
-
-template <size_t _Ip, class... _Tp>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Ip, tuple<_Tp...> >::type&
-get(tuple<_Tp...>&) _NOEXCEPT;
-
-template <size_t _Ip, class... _Tp>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Ip, tuple<_Tp...> >::type&
-get(const tuple<_Tp...>&) _NOEXCEPT;
-
-template <size_t _Ip, class... _Tp>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Ip, tuple<_Tp...> >::type&&
-get(tuple<_Tp...>&&) _NOEXCEPT;
-
-template <size_t _Ip, class... _Tp>
-_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Ip, tuple<_Tp...> >::type&&
-get(const tuple<_Tp...>&&) _NOEXCEPT;
-
-#endif // _LIBCPP_CXX03_LANG
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_TUPLE_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/variant.h b/third_party/libcxx/include/c++/v1/__fwd/variant.h
deleted file mode 100644
index fef7071..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/variant.h
+++ /dev/null
@@ -1,68 +0,0 @@
-//===---------------------------------------------------------------------===//
-//
-// 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___FWD_VARIANT_H
-#define _LIBCPP___FWD_VARIANT_H
-
-#include <__config>
-#include <__cstddef/size_t.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-#if _LIBCPP_STD_VER >= 17
-
-template <class... _Types>
-class variant;
-
-template <class _Tp>
-struct variant_size;
-
-template <class _Tp>
-inline constexpr size_t variant_size_v = variant_size<_Tp>::value;
-
-template <size_t _Ip, class _Tp>
-struct variant_alternative;
-
-template <size_t _Ip, class _Tp>
-using variant_alternative_t = typename variant_alternative<_Ip, _Tp>::type;
-
-inline constexpr size_t variant_npos = static_cast<size_t>(-1);
-
-template <size_t _Ip, class... _Types>
-_LIBCPP_HIDE_FROM_ABI constexpr variant_alternative_t<_Ip, variant<_Types...>>& get(variant<_Types...>&);
-
-template <size_t _Ip, class... _Types>
-_LIBCPP_HIDE_FROM_ABI constexpr variant_alternative_t<_Ip, variant<_Types...>>&& get(variant<_Types...>&&);
-
-template <size_t _Ip, class... _Types>
-_LIBCPP_HIDE_FROM_ABI constexpr const variant_alternative_t<_Ip, variant<_Types...>>& get(const variant<_Types...>&);
-
-template <size_t _Ip, class... _Types>
-_LIBCPP_HIDE_FROM_ABI constexpr const variant_alternative_t<_Ip, variant<_Types...>>&& get(const variant<_Types...>&&);
-
-template <class _Tp, class... _Types>
-_LIBCPP_HIDE_FROM_ABI constexpr _Tp& get(variant<_Types...>&);
-
-template <class _Tp, class... _Types>
-_LIBCPP_HIDE_FROM_ABI constexpr _Tp&& get(variant<_Types...>&&);
-
-template <class _Tp, class... _Types>
-_LIBCPP_HIDE_FROM_ABI constexpr const _Tp& get(const variant<_Types...>&);
-
-template <class _Tp, class... _Types>
-_LIBCPP_HIDE_FROM_ABI constexpr const _Tp&& get(const variant<_Types...>&&);
-
-#endif // _LIBCPP_STD_VER >= 17
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_VARIANT_H
diff --git a/third_party/libcxx/include/c++/v1/__fwd/vector.h b/third_party/libcxx/include/c++/v1/__fwd/vector.h
deleted file mode 100644
index 31084ec..0000000
--- a/third_party/libcxx/include/c++/v1/__fwd/vector.h
+++ /dev/null
@@ -1,29 +0,0 @@
-//===---------------------------------------------------------------------===//
-//
-// 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___FWD_VECTOR_H
-#define _LIBCPP___FWD_VECTOR_H
-
-#include <__config>
-#include <__fwd/memory.h>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _Tp, class _Alloc = allocator<_Tp> >
-class vector;
-
-template <class _Allocator>
-class vector<bool, _Allocator>;
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___FWD_VECTOR_H