80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14, c++17
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// UNSUPPORTED: !c++experimental
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// ADL call with nested iterators of views should not look up base's view's
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// namespace
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#include <ranges>
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#include <tuple>
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#include "test_macros.h"
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#ifndef TEST_HAS_NO_LOCALIZATION
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#include <istream>
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#endif
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namespace adl {
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struct BaseView : std::ranges::view_base {
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int* begin() const;
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int* end() const;
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};
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struct TupleView : std::ranges::view_base {
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std::tuple<int>* begin() const;
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std::tuple<int>* end() const;
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};
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struct NestedView : std::ranges::view_base {
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BaseView* begin() const;
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BaseView* end() const;
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};
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struct Pred {
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bool operator()(const auto&...) const;
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};
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struct Sentinel {
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bool operator==(const auto&) const;
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};
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struct Value {
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friend std::istream& operator>>(std::istream&, Value);
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};
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void adl_func(const auto&);
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} // namespace adl
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template <class View>
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concept CanFindADLFunc = requires(std::ranges::iterator_t<View> it) { adl_func(it); };
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static_assert(!CanFindADLFunc<std::ranges::elements_view<adl::TupleView, 0>>);
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static_assert(!CanFindADLFunc<std::ranges::filter_view<adl::BaseView, adl::Pred>>);
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static_assert(!CanFindADLFunc<std::ranges::iota_view<int, adl::Sentinel>>);
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#ifndef TEST_HAS_NO_LOCALIZATION
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static_assert(!CanFindADLFunc<std::ranges::istream_view<adl::Value>>);
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#endif
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static_assert(!CanFindADLFunc<std::ranges::join_view<adl::NestedView>>);
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static_assert(!CanFindADLFunc<std::ranges::lazy_split_view<adl::BaseView, adl::BaseView>>);
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using InnerRange =
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typename std::ranges::iterator_t<std::ranges::lazy_split_view<adl::BaseView, adl::BaseView>>::value_type;
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static_assert(!CanFindADLFunc<InnerRange >);
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static_assert(!CanFindADLFunc<std::ranges::split_view<adl::BaseView, adl::BaseView>>);
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static_assert(!CanFindADLFunc<std::ranges::transform_view<adl::BaseView, adl::Pred>>);
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#if TEST_STD_VER >= 23
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static_assert(!CanFindADLFunc<std::ranges::zip_view<adl::BaseView>>);
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#endif
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