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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// <compare>, <iterator>, <ranges>
// ADL should be performed. Ordinary unqualified lookup should not be performed.
namespace ns {
struct StructWithGlobalFunctions {};
} // namespace ns
struct ConvertibleToCmpType;
ConvertibleToCmpType strong_order(const ns::StructWithGlobalFunctions&, const ns::StructWithGlobalFunctions&);
ConvertibleToCmpType weak_order(const ns::StructWithGlobalFunctions&, const ns::StructWithGlobalFunctions&);
ConvertibleToCmpType partial_order(const ns::StructWithGlobalFunctions&, const ns::StructWithGlobalFunctions&);
int&& iter_move(const ns::StructWithGlobalFunctions&);
void iter_swap(const ns::StructWithGlobalFunctions&, const ns::StructWithGlobalFunctions&);
int* begin(const ns::StructWithGlobalFunctions&);
int* end(const ns::StructWithGlobalFunctions&);
int* rbegin(const ns::StructWithGlobalFunctions&);
int* rend(const ns::StructWithGlobalFunctions&);
unsigned int size(const ns::StructWithGlobalFunctions&);
#include <compare>
#include <ranges>
#include <type_traits>
struct ConvertibleToCmpType {
operator std::strong_ordering() const;
operator std::weak_ordering() const;
operator std::partial_ordering() const;
};
struct StructWithHiddenFriends {
friend ConvertibleToCmpType strong_order(const StructWithHiddenFriends&, const StructWithHiddenFriends&);
friend ConvertibleToCmpType weak_order(const StructWithHiddenFriends&, const StructWithHiddenFriends&);
friend ConvertibleToCmpType partial_order(const StructWithHiddenFriends&, const StructWithHiddenFriends&);
friend int&& iter_move(const StructWithHiddenFriends&);
friend void iter_swap(const StructWithHiddenFriends&, const StructWithHiddenFriends&);
friend int* begin(const StructWithHiddenFriends&);
friend int* end(const StructWithHiddenFriends&);
friend int* rbegin(const StructWithHiddenFriends&);
friend int* rend(const StructWithHiddenFriends&);
friend unsigned int size(const StructWithHiddenFriends&);
};
// [cmp.alg] ADL should be performed.
static_assert(std::is_invocable_v<decltype(std::strong_order), StructWithHiddenFriends&, StructWithHiddenFriends&>);
static_assert(std::is_invocable_v<decltype(std::weak_order), StructWithHiddenFriends&, StructWithHiddenFriends&>);
static_assert(std::is_invocable_v<decltype(std::partial_order), StructWithHiddenFriends&, StructWithHiddenFriends&>);
// [cmp.alg] Ordinary unqualified lookup should not be performed.
static_assert(
!std::is_invocable_v<decltype(std::strong_order), ns::StructWithGlobalFunctions&, ns::StructWithGlobalFunctions&>);
static_assert(
!std::is_invocable_v<decltype(std::weak_order), ns::StructWithGlobalFunctions&, ns::StructWithGlobalFunctions&>);
static_assert(
!std::is_invocable_v<decltype(std::partial_order), ns::StructWithGlobalFunctions&, ns::StructWithGlobalFunctions&>);
// [iterator.cust] ADL should be performed.
static_assert(std::is_invocable_v<decltype(std::ranges::iter_move), StructWithHiddenFriends&>);
static_assert(
std::is_invocable_v<decltype(std::ranges::iter_swap), StructWithHiddenFriends&, StructWithHiddenFriends&>);
// [iterator.cust] Ordinary unqualified lookup should not be performed.
static_assert(!std::is_invocable_v<decltype(std::ranges::iter_move), ns::StructWithGlobalFunctions&>);
static_assert(!std::is_invocable_v<decltype(std::ranges::iter_swap),
ns::StructWithGlobalFunctions&,
ns::StructWithGlobalFunctions&>);
// [range.access] ADL should be performed.
static_assert(std::is_invocable_v<decltype(std::ranges::begin), StructWithHiddenFriends&>);
static_assert(std::is_invocable_v<decltype(std::ranges::cbegin), StructWithHiddenFriends&>);
static_assert(std::is_invocable_v<decltype(std::ranges::end), StructWithHiddenFriends&>);
static_assert(std::is_invocable_v<decltype(std::ranges::cend), StructWithHiddenFriends&>);
static_assert(std::is_invocable_v<decltype(std::ranges::rbegin), StructWithHiddenFriends&>);
static_assert(std::is_invocable_v<decltype(std::ranges::crbegin), StructWithHiddenFriends&>);
static_assert(std::is_invocable_v<decltype(std::ranges::rend), StructWithHiddenFriends&>);
static_assert(std::is_invocable_v<decltype(std::ranges::crend), StructWithHiddenFriends&>);
static_assert(std::is_invocable_v<decltype(std::ranges::size), StructWithHiddenFriends&>);
// [range.access] Ordinary unqualified lookup should not be performed.
static_assert(!std::is_invocable_v<decltype(std::ranges::begin), ns::StructWithGlobalFunctions&>);
static_assert(!std::is_invocable_v<decltype(std::ranges::cbegin), ns::StructWithGlobalFunctions&>);
static_assert(!std::is_invocable_v<decltype(std::ranges::end), ns::StructWithGlobalFunctions&>);
static_assert(!std::is_invocable_v<decltype(std::ranges::cend), ns::StructWithGlobalFunctions&>);
static_assert(!std::is_invocable_v<decltype(std::ranges::rbegin), ns::StructWithGlobalFunctions&>);
static_assert(!std::is_invocable_v<decltype(std::ranges::crbegin), ns::StructWithGlobalFunctions&>);
static_assert(!std::is_invocable_v<decltype(std::ranges::rend), ns::StructWithGlobalFunctions&>);
static_assert(!std::is_invocable_v<decltype(std::ranges::crend), ns::StructWithGlobalFunctions&>);
static_assert(!std::is_invocable_v<decltype(std::ranges::size), ns::StructWithGlobalFunctions&>);
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