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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
// UNSUPPORTED: libcpp-no-concepts
// UNSUPPORTED: gcc-10
// UNSUPPORTED: libcpp-has-no-incomplete-ranges
// transform_view::<iterator>::operator{<,>,<=,>=}
#include <ranges>
#include <compare>
#include "test_macros.h"
#include "../types.h"
constexpr bool test() {
{
std::ranges::transform_view<ContiguousView, Increment> transformView1;
auto iter1 = std::move(transformView1).begin();
std::ranges::transform_view<ContiguousView, Increment> transformView2;
auto iter2 = std::move(transformView2).begin();
assert(iter1 == iter2);
assert(iter1 + 1 != iter2);
assert(iter1 + 1 == iter2 + 1);
assert(iter1 < iter1 + 1);
assert(iter1 + 1 > iter1);
assert(iter1 <= iter1 + 1);
assert(iter1 <= iter2);
assert(iter1 + 1 >= iter2);
assert(iter1 >= iter2);
}
// TODO: when three_way_comparable is implemented and std::is_eq is implemented,
// uncomment this.
// {
// std::ranges::transform_view<ThreeWayCompView, Increment> transformView1;
// auto iter1 = transformView1.begin();
// std::ranges::transform_view<ThreeWayCompView, Increment> transformView2;
// auto iter2 = transformView2.begin();
//
// assert(std::is_eq(iter1 <=> iter2));
// assert(std::is_lteq(iter1 <=> iter2));
// ++iter2;
// assert(std::is_neq(iter1 <=> iter2));
// assert(std::is_lt(iter1 <=> iter2));
// assert(std::is_gt(iter2 <=> iter1));
// assert(std::is_gteq(iter2 <=> iter1));
//
// static_assert( std::three_way_comparable<std::iterator_t<std::ranges::transform_view<ThreeWayCompView, Increment>>>);
// static_assert(!std::three_way_comparable<std::iterator_t<std::ranges::transform_view<ContiguousView, Increment>>>);
// }
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}
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