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// XFAIL: availability-char8_t_support-missing
10
11// This test runs in C++20, but we have deprecated codecvt<char(16|32), char, mbstate_t> in C++20.
12// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
13
14// <locale>
15
16// static const locale& classic();
17
18#include <locale>
19#include <cassert>
20
21#include "test_macros.h"
22
23template<class CharT>
24void check_for(const std::locale& loc)
25{
26 assert(std::has_facet<std::collate<CharT> >(loc));
27
28 assert(std::has_facet<std::ctype<CharT> >(loc));
29
30 assert((std::has_facet<std::codecvt<CharT, char, std::mbstate_t> >(loc)));
31
32 assert(std::has_facet<std::moneypunct<CharT> >(loc));
33 assert(std::has_facet<std::money_get<CharT> >(loc));
34 assert(std::has_facet<std::money_put<CharT> >(loc));
35
36 assert(std::has_facet<std::numpunct<CharT> >(loc));
37 assert(std::has_facet<std::num_get<CharT> >(loc));
38 assert(std::has_facet<std::num_put<CharT> >(loc));
39
40 assert(std::has_facet<std::time_get<CharT> >(loc));
41 assert(std::has_facet<std::time_put<CharT> >(loc));
42
43 assert(std::has_facet<std::messages<CharT> >(loc));
44}
45
46void check(const std::locale& loc)
47{
48 check_for<char>(loc);
49#ifndef TEST_HAS_NO_WIDE_CHARACTERS
50 check_for<wchar_t>(loc);
51#endif
52
53 assert((std::has_facet<std::codecvt<char16_t, char, std::mbstate_t> >(loc)));
54 assert((std::has_facet<std::codecvt<char32_t, char, std::mbstate_t> >(loc)));
55#if TEST_STD_VER > 17
56 assert((std::has_facet<std::codecvt<char16_t, char8_t, std::mbstate_t> >(loc)));
57 assert((std::has_facet<std::codecvt<char32_t, char8_t, std::mbstate_t> >(loc)));
58#endif
59}
60
61int main(int, char**)
62{
63 std::locale loc = std::locale::classic();
64 assert(loc.name() == "C");
65 assert(loc == std::locale("C"));
66 check(loc);
67 check(loc: std::locale("C"));
68
69 return 0;
70}
71

source code of libcxx/test/std/localization/locales/locale/locale.statics/classic.pass.cpp