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, c++20
10 // ADDITIONAL_COMPILE_FLAGS: -Wno-deprecated-volatile
11
12 // Test that the "mandates" requirements on the given container are checked using `static_assert`.
13
14 #include <ranges>
15 #include <vector>
16
test()17 void test() {
18 using R = std::vector<int>;
19 R in = {1, 2, 3};
20
21 (void)std::ranges::to<const R>(in); //expected-error-re@*:* {{static assertion failed{{.*}}The target container cannot be const-qualified, please remove the const}}
22 (void)(in | std::ranges::to<const R>()); //expected-error-re@*:* {{static assertion failed{{.*}}The target container cannot be const-qualified, please remove the const}}
23 (void)std::ranges::to<volatile R>(in); //expected-error-re@*:* {{static assertion failed{{.*}}The target container cannot be volatile-qualified, please remove the volatile}}
24 (void)(in | std::ranges::to<volatile R>()); //expected-error-re@*:* {{static assertion failed{{.*}}The target container cannot be volatile-qualified, please remove the volatile}}
25 }
26