mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-27 14:56:06 +00:00
12978b3e23
Implements [P2602R2 Poison Pills are Too Toxic](https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p2602r2.html) as a DR in C++20 mode.
103 lines
5.6 KiB
C++
103 lines
5.6 KiB
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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// 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&>);
|