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authorAndrey Khalyavin <halyavin@gmail.com>2022-02-10 16:46:30 +0300
committerDaniil Cherednik <dcherednik@yandex-team.ru>2022-02-10 16:46:30 +0300
commit4b839d0704ee9be1dabb0310a1f03af24963637b (patch)
tree1a2c5ffcf89eb53ecd79dbc9bc0a195c27404d0c /contrib/libs/cxxsupp/libcxx/include/__memory/pointer_traits.h
parentf773626848a7c7456803654292e716b83d69cc12 (diff)
downloadydb-4b839d0704ee9be1dabb0310a1f03af24963637b.tar.gz
Restoring authorship annotation for Andrey Khalyavin <halyavin@gmail.com>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/cxxsupp/libcxx/include/__memory/pointer_traits.h')
-rw-r--r--contrib/libs/cxxsupp/libcxx/include/__memory/pointer_traits.h440
1 files changed, 220 insertions, 220 deletions
diff --git a/contrib/libs/cxxsupp/libcxx/include/__memory/pointer_traits.h b/contrib/libs/cxxsupp/libcxx/include/__memory/pointer_traits.h
index 6c1da3548d..53b2c32eda 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__memory/pointer_traits.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__memory/pointer_traits.h
@@ -1,220 +1,220 @@
-// -*- 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___MEMORY_POINTER_TRAITS_H
-#define _LIBCPP___MEMORY_POINTER_TRAITS_H
-
-#include <__config>
-#include <__memory/addressof.h>
-#include <type_traits>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-#pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-template <class _Tp, class = void>
-struct __has_element_type : false_type {};
-
-template <class _Tp>
-struct __has_element_type<_Tp,
- typename __void_t<typename _Tp::element_type>::type> : true_type {};
-
-template <class _Ptr, bool = __has_element_type<_Ptr>::value>
-struct __pointer_traits_element_type;
-
-template <class _Ptr>
-struct __pointer_traits_element_type<_Ptr, true>
-{
- typedef _LIBCPP_NODEBUG typename _Ptr::element_type type;
-};
-
-template <template <class, class...> class _Sp, class _Tp, class ..._Args>
-struct __pointer_traits_element_type<_Sp<_Tp, _Args...>, true>
-{
- typedef _LIBCPP_NODEBUG typename _Sp<_Tp, _Args...>::element_type type;
-};
-
-template <template <class, class...> class _Sp, class _Tp, class ..._Args>
-struct __pointer_traits_element_type<_Sp<_Tp, _Args...>, false>
-{
- typedef _LIBCPP_NODEBUG _Tp type;
-};
-
-template <class _Tp, class = void>
-struct __has_difference_type : false_type {};
-
-template <class _Tp>
-struct __has_difference_type<_Tp,
- typename __void_t<typename _Tp::difference_type>::type> : true_type {};
-
-template <class _Ptr, bool = __has_difference_type<_Ptr>::value>
-struct __pointer_traits_difference_type
-{
- typedef _LIBCPP_NODEBUG ptrdiff_t type;
-};
-
-template <class _Ptr>
-struct __pointer_traits_difference_type<_Ptr, true>
-{
- typedef _LIBCPP_NODEBUG typename _Ptr::difference_type type;
-};
-
-template <class _Tp, class _Up>
-struct __has_rebind
-{
-private:
- struct __two {char __lx; char __lxx;};
- template <class _Xp> static __two __test(...);
- _LIBCPP_SUPPRESS_DEPRECATED_PUSH
- // Fix for MSVC which allows to reference private types. Wrap into declval to prevent that.
- template <class _Xp> static char __test(decltype(_VSTD::declval<typename _Xp::template rebind<_Up>*>()) = 0);
- _LIBCPP_SUPPRESS_DEPRECATED_POP
-public:
- static const bool value = sizeof(__test<_Tp>(0)) == 1;
-};
-
-template <class _Tp, class _Up, bool = __has_rebind<_Tp, _Up>::value>
-struct __pointer_traits_rebind
-{
-#ifndef _LIBCPP_CXX03_LANG
- typedef _LIBCPP_NODEBUG typename _Tp::template rebind<_Up> type;
-#else
- typedef _LIBCPP_NODEBUG typename _Tp::template rebind<_Up>::other type;
-#endif
-};
-
-template <template <class, class...> class _Sp, class _Tp, class ..._Args, class _Up>
-struct __pointer_traits_rebind<_Sp<_Tp, _Args...>, _Up, true>
-{
-#ifndef _LIBCPP_CXX03_LANG
- typedef _LIBCPP_NODEBUG typename _Sp<_Tp, _Args...>::template rebind<_Up> type;
-#else
- typedef _LIBCPP_NODEBUG typename _Sp<_Tp, _Args...>::template rebind<_Up>::other type;
-#endif
-};
-
-template <template <class, class...> class _Sp, class _Tp, class ..._Args, class _Up>
-struct __pointer_traits_rebind<_Sp<_Tp, _Args...>, _Up, false>
-{
- typedef _Sp<_Up, _Args...> type;
-};
-
-template <class _Ptr>
-struct _LIBCPP_TEMPLATE_VIS pointer_traits
-{
- typedef _Ptr pointer;
- typedef typename __pointer_traits_element_type<pointer>::type element_type;
- typedef typename __pointer_traits_difference_type<pointer>::type difference_type;
-
-#ifndef _LIBCPP_CXX03_LANG
- template <class _Up> using rebind = typename __pointer_traits_rebind<pointer, _Up>::type;
-#else
- template <class _Up> struct rebind
- {typedef typename __pointer_traits_rebind<pointer, _Up>::type other;};
-#endif // _LIBCPP_CXX03_LANG
-
-private:
- struct __nat {};
-public:
- _LIBCPP_INLINE_VISIBILITY
- static pointer pointer_to(typename conditional<is_void<element_type>::value,
- __nat, element_type>::type& __r)
- {return pointer::pointer_to(__r);}
-};
-
-template <class _Tp>
-struct _LIBCPP_TEMPLATE_VIS pointer_traits<_Tp*>
-{
- typedef _Tp* pointer;
- typedef _Tp element_type;
- typedef ptrdiff_t difference_type;
-
-#ifndef _LIBCPP_CXX03_LANG
- template <class _Up> using rebind = _Up*;
-#else
- template <class _Up> struct rebind {typedef _Up* other;};
-#endif
-
-private:
- struct __nat {};
-public:
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
- static pointer pointer_to(typename conditional<is_void<element_type>::value,
- __nat, element_type>::type& __r) _NOEXCEPT
- {return _VSTD::addressof(__r);}
-};
-
-template <class _From, class _To>
-struct __rebind_pointer {
-#ifndef _LIBCPP_CXX03_LANG
- typedef typename pointer_traits<_From>::template rebind<_To> type;
-#else
- typedef typename pointer_traits<_From>::template rebind<_To>::other type;
-#endif
-};
-
-// to_address
-
-template <class _Pointer, class = void>
-struct __to_address_helper;
-
-template <class _Tp>
-_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
-_Tp* __to_address(_Tp* __p) _NOEXCEPT {
- static_assert(!is_function<_Tp>::value, "_Tp is a function type");
- return __p;
-}
-
-// enable_if is needed here to avoid instantiating checks for fancy pointers on raw pointers
-template <class _Pointer, class = __enable_if_t<
- !is_pointer<_Pointer>::value && !is_array<_Pointer>::value && !is_function<_Pointer>::value
-> >
-_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
-typename decay<decltype(__to_address_helper<_Pointer>::__call(declval<const _Pointer&>()))>::type
-__to_address(const _Pointer& __p) _NOEXCEPT {
- return __to_address_helper<_Pointer>::__call(__p);
-}
-
-template <class _Pointer, class>
-struct __to_address_helper {
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
- static decltype(_VSTD::__to_address(declval<const _Pointer&>().operator->()))
- __call(const _Pointer& __p) _NOEXCEPT {
- return _VSTD::__to_address(__p.operator->());
- }
-};
-
-template <class _Pointer>
-struct __to_address_helper<_Pointer, decltype((void)pointer_traits<_Pointer>::to_address(declval<const _Pointer&>()))> {
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
- static decltype(pointer_traits<_Pointer>::to_address(declval<const _Pointer&>()))
- __call(const _Pointer& __p) _NOEXCEPT {
- return pointer_traits<_Pointer>::to_address(__p);
- }
-};
-
-#if _LIBCPP_STD_VER > 17
-template <class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY constexpr
-auto to_address(_Tp *__p) noexcept {
- return _VSTD::__to_address(__p);
-}
-
-template <class _Pointer>
-inline _LIBCPP_INLINE_VISIBILITY constexpr
-auto to_address(const _Pointer& __p) noexcept {
- return _VSTD::__to_address(__p);
-}
-#endif
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___MEMORY_POINTER_TRAITS_H
+// -*- 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___MEMORY_POINTER_TRAITS_H
+#define _LIBCPP___MEMORY_POINTER_TRAITS_H
+
+#include <__config>
+#include <__memory/addressof.h>
+#include <type_traits>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#pragma GCC system_header
+#endif
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+template <class _Tp, class = void>
+struct __has_element_type : false_type {};
+
+template <class _Tp>
+struct __has_element_type<_Tp,
+ typename __void_t<typename _Tp::element_type>::type> : true_type {};
+
+template <class _Ptr, bool = __has_element_type<_Ptr>::value>
+struct __pointer_traits_element_type;
+
+template <class _Ptr>
+struct __pointer_traits_element_type<_Ptr, true>
+{
+ typedef _LIBCPP_NODEBUG typename _Ptr::element_type type;
+};
+
+template <template <class, class...> class _Sp, class _Tp, class ..._Args>
+struct __pointer_traits_element_type<_Sp<_Tp, _Args...>, true>
+{
+ typedef _LIBCPP_NODEBUG typename _Sp<_Tp, _Args...>::element_type type;
+};
+
+template <template <class, class...> class _Sp, class _Tp, class ..._Args>
+struct __pointer_traits_element_type<_Sp<_Tp, _Args...>, false>
+{
+ typedef _LIBCPP_NODEBUG _Tp type;
+};
+
+template <class _Tp, class = void>
+struct __has_difference_type : false_type {};
+
+template <class _Tp>
+struct __has_difference_type<_Tp,
+ typename __void_t<typename _Tp::difference_type>::type> : true_type {};
+
+template <class _Ptr, bool = __has_difference_type<_Ptr>::value>
+struct __pointer_traits_difference_type
+{
+ typedef _LIBCPP_NODEBUG ptrdiff_t type;
+};
+
+template <class _Ptr>
+struct __pointer_traits_difference_type<_Ptr, true>
+{
+ typedef _LIBCPP_NODEBUG typename _Ptr::difference_type type;
+};
+
+template <class _Tp, class _Up>
+struct __has_rebind
+{
+private:
+ struct __two {char __lx; char __lxx;};
+ template <class _Xp> static __two __test(...);
+ _LIBCPP_SUPPRESS_DEPRECATED_PUSH
+ // Fix for MSVC which allows to reference private types. Wrap into declval to prevent that.
+ template <class _Xp> static char __test(decltype(_VSTD::declval<typename _Xp::template rebind<_Up>*>()) = 0);
+ _LIBCPP_SUPPRESS_DEPRECATED_POP
+public:
+ static const bool value = sizeof(__test<_Tp>(0)) == 1;
+};
+
+template <class _Tp, class _Up, bool = __has_rebind<_Tp, _Up>::value>
+struct __pointer_traits_rebind
+{
+#ifndef _LIBCPP_CXX03_LANG
+ typedef _LIBCPP_NODEBUG typename _Tp::template rebind<_Up> type;
+#else
+ typedef _LIBCPP_NODEBUG typename _Tp::template rebind<_Up>::other type;
+#endif
+};
+
+template <template <class, class...> class _Sp, class _Tp, class ..._Args, class _Up>
+struct __pointer_traits_rebind<_Sp<_Tp, _Args...>, _Up, true>
+{
+#ifndef _LIBCPP_CXX03_LANG
+ typedef _LIBCPP_NODEBUG typename _Sp<_Tp, _Args...>::template rebind<_Up> type;
+#else
+ typedef _LIBCPP_NODEBUG typename _Sp<_Tp, _Args...>::template rebind<_Up>::other type;
+#endif
+};
+
+template <template <class, class...> class _Sp, class _Tp, class ..._Args, class _Up>
+struct __pointer_traits_rebind<_Sp<_Tp, _Args...>, _Up, false>
+{
+ typedef _Sp<_Up, _Args...> type;
+};
+
+template <class _Ptr>
+struct _LIBCPP_TEMPLATE_VIS pointer_traits
+{
+ typedef _Ptr pointer;
+ typedef typename __pointer_traits_element_type<pointer>::type element_type;
+ typedef typename __pointer_traits_difference_type<pointer>::type difference_type;
+
+#ifndef _LIBCPP_CXX03_LANG
+ template <class _Up> using rebind = typename __pointer_traits_rebind<pointer, _Up>::type;
+#else
+ template <class _Up> struct rebind
+ {typedef typename __pointer_traits_rebind<pointer, _Up>::type other;};
+#endif // _LIBCPP_CXX03_LANG
+
+private:
+ struct __nat {};
+public:
+ _LIBCPP_INLINE_VISIBILITY
+ static pointer pointer_to(typename conditional<is_void<element_type>::value,
+ __nat, element_type>::type& __r)
+ {return pointer::pointer_to(__r);}
+};
+
+template <class _Tp>
+struct _LIBCPP_TEMPLATE_VIS pointer_traits<_Tp*>
+{
+ typedef _Tp* pointer;
+ typedef _Tp element_type;
+ typedef ptrdiff_t difference_type;
+
+#ifndef _LIBCPP_CXX03_LANG
+ template <class _Up> using rebind = _Up*;
+#else
+ template <class _Up> struct rebind {typedef _Up* other;};
+#endif
+
+private:
+ struct __nat {};
+public:
+ _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
+ static pointer pointer_to(typename conditional<is_void<element_type>::value,
+ __nat, element_type>::type& __r) _NOEXCEPT
+ {return _VSTD::addressof(__r);}
+};
+
+template <class _From, class _To>
+struct __rebind_pointer {
+#ifndef _LIBCPP_CXX03_LANG
+ typedef typename pointer_traits<_From>::template rebind<_To> type;
+#else
+ typedef typename pointer_traits<_From>::template rebind<_To>::other type;
+#endif
+};
+
+// to_address
+
+template <class _Pointer, class = void>
+struct __to_address_helper;
+
+template <class _Tp>
+_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
+_Tp* __to_address(_Tp* __p) _NOEXCEPT {
+ static_assert(!is_function<_Tp>::value, "_Tp is a function type");
+ return __p;
+}
+
+// enable_if is needed here to avoid instantiating checks for fancy pointers on raw pointers
+template <class _Pointer, class = __enable_if_t<
+ !is_pointer<_Pointer>::value && !is_array<_Pointer>::value && !is_function<_Pointer>::value
+> >
+_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
+typename decay<decltype(__to_address_helper<_Pointer>::__call(declval<const _Pointer&>()))>::type
+__to_address(const _Pointer& __p) _NOEXCEPT {
+ return __to_address_helper<_Pointer>::__call(__p);
+}
+
+template <class _Pointer, class>
+struct __to_address_helper {
+ _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
+ static decltype(_VSTD::__to_address(declval<const _Pointer&>().operator->()))
+ __call(const _Pointer& __p) _NOEXCEPT {
+ return _VSTD::__to_address(__p.operator->());
+ }
+};
+
+template <class _Pointer>
+struct __to_address_helper<_Pointer, decltype((void)pointer_traits<_Pointer>::to_address(declval<const _Pointer&>()))> {
+ _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
+ static decltype(pointer_traits<_Pointer>::to_address(declval<const _Pointer&>()))
+ __call(const _Pointer& __p) _NOEXCEPT {
+ return pointer_traits<_Pointer>::to_address(__p);
+ }
+};
+
+#if _LIBCPP_STD_VER > 17
+template <class _Tp>
+inline _LIBCPP_INLINE_VISIBILITY constexpr
+auto to_address(_Tp *__p) noexcept {
+ return _VSTD::__to_address(__p);
+}
+
+template <class _Pointer>
+inline _LIBCPP_INLINE_VISIBILITY constexpr
+auto to_address(const _Pointer& __p) noexcept {
+ return _VSTD::__to_address(__p);
+}
+#endif
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP___MEMORY_POINTER_TRAITS_H