1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // UNSUPPORTED: c++03, c++11, c++14, c++17
10 // UNSUPPORTED: libcpp-no-concepts
11 // UNSUPPORTED: libcpp-has-no-incomplete-ranges
12 
13 // constexpr drop_view(V base, range_difference_t<V> count);
14 
15 #include <ranges>
16 
17 #include "test_macros.h"
18 #include "types.h"
19 
20 constexpr bool test() {
21   std::ranges::drop_view dropView1(MoveOnlyView(), 4);
22   assert(dropView1.size() == 4);
23   assert(dropView1.begin() == globalBuff + 4);
24 
25   std::ranges::drop_view dropView2(ForwardView(), 4);
26   assert(dropView2.begin().base() == globalBuff + 4);
27 
28   return true;
29 }
30 
31 int main(int, char**) {
32   test();
33   static_assert(test());
34 
35   return 0;
36 }
37