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authorhalyavin <halyavin@yandex-team.com>2023-09-26 11:14:38 +0300
committerhalyavin <halyavin@yandex-team.com>2023-09-26 11:42:52 +0300
commit7fcf8b470c7f4b97acf6f2833afa770c1372f231 (patch)
treec7583ae7054d92eb5788c03760b6b9c50f7cc6c6 /contrib/libs/cxxsupp/libcxx/include/__iterator/iter_move.h
parent4c226ec97b09cd6fc38f8a0bbe57f52d384abe3f (diff)
downloadydb-7fcf8b470c7f4b97acf6f2833afa770c1372f231.tar.gz
Update libc++ to 9b03c08e (6 Mar 2022).
Notable changes: * don't warn that coroutines are not supported when using experimental/coroutine * add _LIBCPP_HIDE_FROM_ABI to __quoted_proxy constructors * ADL-proof calls of __quoted * fix ctype facet `is` method for Windows * change return type of bit_width to int (LWG3656) * make private __wrap_iter constructors explicit * fix delayed initialization of `__fill_` in basic_ios * ranges::iter_move cleanup * ADL-proof __synth_three_way * reject random number generators with signed types * use C++ overloads from math.h on AIX * add explicit to some internal constructors * replace _LIBCPP_HAS_NO_STRONG_ENUMS with C++ version check * use `inline constexpr bool` instead of `constexpr bool` for helpers in ranges * reject uniform_int_distribution<bool>, uniform_int_distribution<char> and all user types * allow std::mergeable and std::sortable even with incomplete ranges * fix double close bug in std::filesystem::remove_all * remove recursion in basic_string::insert because it interferes with constexpr * fix error checking of wctob_l calls * pack _Flags class on AIX * fix integer type in __estimate_column_width exposed by AIX * qualify all std::move calls with std * make chrono includes granular * set std::numeric_limits::tinyness_before to true on ARM * add ranges::in_found_result and ranges::min_max_result
Diffstat (limited to 'contrib/libs/cxxsupp/libcxx/include/__iterator/iter_move.h')
-rw-r--r--contrib/libs/cxxsupp/libcxx/include/__iterator/iter_move.h38
1 files changed, 13 insertions, 25 deletions
diff --git a/contrib/libs/cxxsupp/libcxx/include/__iterator/iter_move.h b/contrib/libs/cxxsupp/libcxx/include/__iterator/iter_move.h
index 4a89662927..97d54c4a82 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__iterator/iter_move.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__iterator/iter_move.h
@@ -10,11 +10,11 @@
#ifndef _LIBCPP___ITERATOR_ITER_MOVE_H
#define _LIBCPP___ITERATOR_ITER_MOVE_H
+#include <__concepts/class_or_enum.h>
#include <__config>
#include <__iterator/iterator_traits.h>
#include <__utility/forward.h>
#include <__utility/move.h>
-#include <concepts> // __class_or_enum
#include <type_traits>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
@@ -36,44 +36,32 @@ template <class _Tp>
concept __unqualified_iter_move =
__class_or_enum<remove_cvref_t<_Tp>> &&
requires (_Tp&& __t) {
- iter_move(_VSTD::forward<_Tp>(__t));
+ iter_move(std::forward<_Tp>(__t));
};
-// [iterator.cust.move]/1
-// The name ranges::iter_move denotes a customization point object.
-// The expression ranges::iter_move(E) for a subexpression E is
-// expression-equivalent to:
+// [iterator.cust.move]
+
struct __fn {
- // [iterator.cust.move]/1.1
- // iter_move(E), if E has class or enumeration type and iter_move(E) is a
- // well-formed expression when treated as an unevaluated operand, [...]
template<class _Ip>
- requires __class_or_enum<remove_cvref_t<_Ip>> && __unqualified_iter_move<_Ip>
+ requires __unqualified_iter_move<_Ip>
[[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr decltype(auto) operator()(_Ip&& __i) const
- noexcept(noexcept(iter_move(_VSTD::forward<_Ip>(__i))))
+ noexcept(noexcept(iter_move(std::forward<_Ip>(__i))))
{
- return iter_move(_VSTD::forward<_Ip>(__i));
+ return iter_move(std::forward<_Ip>(__i));
}
- // [iterator.cust.move]/1.2
- // Otherwise, if the expression *E is well-formed:
- // 1.2.1 if *E is an lvalue, std::move(*E);
- // 1.2.2 otherwise, *E.
template<class _Ip>
- requires (!(__class_or_enum<remove_cvref_t<_Ip>> && __unqualified_iter_move<_Ip>)) &&
- requires(_Ip&& __i) { *_VSTD::forward<_Ip>(__i); }
+ requires (!__unqualified_iter_move<_Ip>) &&
+ requires { *declval<_Ip>(); }
[[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr decltype(auto) operator()(_Ip&& __i) const
- noexcept(noexcept(*_VSTD::forward<_Ip>(__i)))
+ noexcept(noexcept(*std::forward<_Ip>(__i)))
{
- if constexpr (is_lvalue_reference_v<decltype(*_VSTD::forward<_Ip>(__i))>) {
- return _VSTD::move(*_VSTD::forward<_Ip>(__i));
+ if constexpr (is_lvalue_reference_v<decltype(*declval<_Ip>())>) {
+ return std::move(*std::forward<_Ip>(__i));
} else {
- return *_VSTD::forward<_Ip>(__i);
+ return *std::forward<_Ip>(__i);
}
}
-
- // [iterator.cust.move]/1.3
- // Otherwise, ranges::iter_move(E) is ill-formed.
};
} // namespace __iter_move