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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
//
//===----------------------------------------------------------------------===//
#ifndef LIBCXX_TEST_SUPPORT_TEST_RANGE_H
#define LIBCXX_TEST_SUPPORT_TEST_RANGE_H
#include <iterator>
#include <ranges>
#include "test_iterators.h"
#ifdef _LIBCPP_HAS_NO_RANGES
#error "test/suppoort/test_range.h" can only be included in builds supporting ranges
#endif
struct sentinel {
bool operator==(std::input_or_output_iterator auto const&) const;
};
// clang-format off
template <template <class...> class I>
requires std::input_or_output_iterator<I<int*> >
struct test_range {
I<int*> begin();
I<int const*> begin() const;
sentinel end();
sentinel end() const;
};
template <template <class...> class I>
requires std::input_or_output_iterator<I<int*> >
struct test_non_const_range {
I<int*> begin();
sentinel end();
};
template <template <class...> class I>
requires std::input_or_output_iterator<I<int*> >
struct test_common_range {
I<int*> begin();
I<int const*> begin() const;
I<int*> end();
I<int const*> end() const;
};
template <template <class...> class I>
requires std::input_or_output_iterator<I<int*> >
struct test_non_const_common_range {
I<int*> begin();
I<int*> end();
};
// clang-format on
#endif // LIBCXX_TEST_SUPPORT_TEST_RANGE_H
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