//===----------------------------------------------------------------------===//
//
// 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
// SPDX-FileCopyrightText: Copyright (c) 2023 NVIDIA CORPORATION & AFFILIATES.
//
//===----------------------------------------------------------------------===//

// template<class In>
// concept cuda::std::weakly_incrementable;

#include <cuda/std/concepts>
#include <cuda/std/iterator>

#include "../incrementable.h"
#include "test_macros.h"

static_assert(cuda::std::weakly_incrementable<int>, "");
static_assert(cuda::std::weakly_incrementable<int*>, "");
static_assert(cuda::std::weakly_incrementable<int**>, "");
static_assert(!cuda::std::weakly_incrementable<int[]>, "");
static_assert(!cuda::std::weakly_incrementable<int[10]>, "");
static_assert(!cuda::std::weakly_incrementable<double>, "");
static_assert(!cuda::std::weakly_incrementable<int&>, "");
static_assert(!cuda::std::weakly_incrementable<int()>, "");
static_assert(!cuda::std::weakly_incrementable<int (*)()>, "");
static_assert(!cuda::std::weakly_incrementable<int (&)()>, "");
#if !TEST_COMPILER(GCC)
static_assert(!cuda::std::weakly_incrementable<bool>, "");
#endif // !TEST_COMPILER(GCC)

struct S
{};
static_assert(!cuda::std::weakly_incrementable<int S::*>, "");

#define CHECK_POINTER_TO_MEMBER_FUNCTIONS(qualifier)                                        \
  static_assert(!cuda::std::weakly_incrementable<int (S::*)() qualifier>, "");              \
  static_assert(!cuda::std::weakly_incrementable<int (S::*)() qualifier noexcept>, "");     \
  static_assert(!cuda::std::weakly_incrementable<int (S::*)() qualifier&>, "");             \
  static_assert(!cuda::std::weakly_incrementable < int(S::*)() qualifier & noexcept >, ""); \
  static_assert(!cuda::std::weakly_incrementable<int (S::*)() qualifier&&>, "");            \
  static_assert(!cuda::std::weakly_incrementable < int(S::*)() qualifier && noexcept >, "");

#define NO_QUALIFIER
CHECK_POINTER_TO_MEMBER_FUNCTIONS(NO_QUALIFIER);
CHECK_POINTER_TO_MEMBER_FUNCTIONS(const);
CHECK_POINTER_TO_MEMBER_FUNCTIONS(volatile);
CHECK_POINTER_TO_MEMBER_FUNCTIONS(const volatile);

static_assert(cuda::std::weakly_incrementable<postfix_increment_returns_void>, "");
static_assert(cuda::std::weakly_incrementable<postfix_increment_returns_copy>, "");
static_assert(cuda::std::weakly_incrementable<has_integral_minus>, "");
static_assert(cuda::std::weakly_incrementable<has_distinct_difference_type_and_minus>, "");
static_assert(!cuda::std::weakly_incrementable<missing_difference_type>, "");
static_assert(!cuda::std::weakly_incrementable<floating_difference_type>, "");
static_assert(!cuda::std::weakly_incrementable<non_const_minus>, "");
static_assert(!cuda::std::weakly_incrementable<non_integral_minus>, "");
static_assert(!cuda::std::weakly_incrementable<bad_difference_type_good_minus>, "");
static_assert(!cuda::std::weakly_incrementable<not_movable>, "");
static_assert(!cuda::std::weakly_incrementable<preinc_not_declared>, "");
static_assert(!cuda::std::weakly_incrementable<postinc_not_declared>, "");
static_assert(cuda::std::weakly_incrementable<not_default_initializable>, "");
static_assert(cuda::std::weakly_incrementable<incrementable_with_difference_type>, "");
static_assert(cuda::std::weakly_incrementable<incrementable_without_difference_type>, "");
static_assert(cuda::std::weakly_incrementable<difference_type_and_void_minus>, "");
static_assert(cuda::std::weakly_incrementable<noncopyable_with_difference_type>, "");
static_assert(cuda::std::weakly_incrementable<noncopyable_without_difference_type>, "");
static_assert(cuda::std::weakly_incrementable<noncopyable_with_difference_type_and_minus>, "");

int main(int, char**)
{
  return 0;
}
