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// bitset<N> operator>>(size_t pos) const; // constexpr since C++23
10
11#include <bitset>
12#include <cassert>
13#include <cstddef>
14#include <vector>
15
16#include "../bitset_test_cases.h"
17#include "test_macros.h"
18
19template <std::size_t N>
20TEST_CONSTEXPR_CXX23 bool test_right_shift() {
21 std::vector<std::bitset<N> > const cases = get_test_cases<N>();
22 for (std::size_t c = 0; c != cases.size(); ++c) {
23 for (std::size_t s = 0; s <= N+1; ++s) {
24 std::bitset<N> v1 = cases[c];
25 std::bitset<N> v2 = v1;
26 assert((v1 >>= s) == (v2 >> s));
27 }
28 }
29 return true;
30}
31
32int main(int, char**) {
33 test_right_shift<0>();
34 test_right_shift<1>();
35 test_right_shift<31>();
36 test_right_shift<32>();
37 test_right_shift<33>();
38 test_right_shift<63>();
39 test_right_shift<64>();
40 test_right_shift<65>();
41 test_right_shift<1000>(); // not in constexpr because of constexpr evaluation step limits
42#if TEST_STD_VER > 20
43 static_assert(test_right_shift<0>());
44 static_assert(test_right_shift<1>());
45 static_assert(test_right_shift<31>());
46 static_assert(test_right_shift<32>());
47 static_assert(test_right_shift<33>());
48 static_assert(test_right_shift<63>());
49 static_assert(test_right_shift<64>());
50 static_assert(test_right_shift<65>());
51#endif
52
53 return 0;
54}
55

source code of libcxx/test/std/utilities/template.bitset/bitset.members/right_shift.pass.cpp