1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <codecvt>
// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT
// template <class Elem, unsigned long Maxcode = 0x10ffff,
// codecvt_mode Mode = (codecvt_mode)0>
// class codecvt_utf8
// : public codecvt<Elem, char, mbstate_t>
// {
// // unspecified
// };
// result
// unshift(stateT& state,
// externT* to, externT* to_end, externT*& to_next) const;
#include <codecvt>
#include <cassert>
#include "test_macros.h"
int main(int, char**)
{
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
{
typedef std::codecvt_utf8<wchar_t> C;
C c;
char n[4] = {0};
std::mbstate_t m;
char* np = nullptr;
std::codecvt_base::result r = c.unshift(m, n, n+4, np);
assert(r == std::codecvt_base::noconv);
}
#endif
{
typedef std::codecvt_utf8<char16_t> C;
C c;
char n[4] = {0};
std::mbstate_t m;
char* np = nullptr;
std::codecvt_base::result r = c.unshift(m, n, n+4, np);
assert(r == std::codecvt_base::noconv);
}
{
typedef std::codecvt_utf8<char32_t> C;
C c;
char n[4] = {0};
std::mbstate_t m;
char* np = nullptr;
std::codecvt_base::result r = c.unshift(m, n, n+4, np);
assert(r == std::codecvt_base::noconv);
}
return 0;
}
|
