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
10
11// <charconv>
12
13// Bitmask type
14// enum class chars_format {
15// scientific = unspecified,
16// fixed = unspecified,
17// hex = unspecified,
18// general = fixed | scientific
19// };
20
21#include <cassert>
22#include <charconv>
23#include <type_traits>
24
25#include "test_macros.h"
26
27constexpr bool test() {
28 using cf = std::chars_format;
29 using ut = std::underlying_type<cf>::type;
30
31 {
32 cf x = cf::scientific;
33 x |= cf::fixed;
34 assert(x == cf::general);
35 }
36 {
37 cf x = cf::general;
38 x &= cf::fixed;
39 assert(x == cf::fixed);
40 }
41 {
42 cf x = cf::general;
43 x ^= cf::fixed;
44 assert(x == cf::scientific);
45 }
46
47 assert(static_cast<ut>(cf::scientific & (cf::fixed | cf::hex)) == 0);
48 assert(static_cast<ut>(cf::fixed & (cf::scientific | cf::hex)) == 0);
49 assert(static_cast<ut>(cf::hex & (cf::scientific | cf::fixed)) == 0);
50
51 assert((cf::scientific | cf::fixed) == cf::general);
52
53 assert(static_cast<ut>(cf::scientific & cf::fixed) == 0);
54
55 assert((cf::general ^ cf::fixed) == cf::scientific);
56
57 assert((~cf::hex & cf::general) == cf::general);
58
59 return true;
60}
61
62std::chars_format x;
63static_assert(std::is_same<std::chars_format, decltype(~x)>::value, "");
64static_assert(std::is_same<std::chars_format, decltype(x & x)>::value, "");
65static_assert(std::is_same<std::chars_format, decltype(x | x)>::value, "");
66static_assert(std::is_same<std::chars_format, decltype(x ^ x)>::value, "");
67static_assert(std::is_same<std::chars_format&, decltype(x &= x)>::value, "");
68static_assert(std::is_same<std::chars_format&, decltype(x |= x)>::value, "");
69static_assert(std::is_same<std::chars_format&, decltype(x ^= x)>::value, "");
70
71int main(int, char**) {
72 assert(test());
73 static_assert(test(), "");
74
75 return 0;
76}
77

source code of libcxx/test/std/utilities/charconv/charconv.syn/chars_format.pass.cpp