64 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// <codecvt>10 11// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_CODECVT12 13// template <class Elem, unsigned long Maxcode = 0x10ffff,14// codecvt_mode Mode = (codecvt_mode)0>15// class codecvt_utf8_utf1616// : public codecvt<Elem, char, mbstate_t>17// {18// // unspecified19// };20 21// result22// unshift(stateT& state,23// externT* to, externT* to_end, externT*& to_next) const;24 25#include <codecvt>26#include <cassert>27 28#include "test_macros.h"29 30int main(int, char**)31{32#ifndef TEST_HAS_NO_WIDE_CHARACTERS33 {34 typedef std::codecvt_utf8_utf16<wchar_t> C;35 C c;36 char n[4] = {0};37 std::mbstate_t m;38 char* np = nullptr;39 std::codecvt_base::result r = c.unshift(m, n, n+4, np);40 assert(r == std::codecvt_base::noconv);41 }42#endif43 {44 typedef std::codecvt_utf8_utf16<char16_t> C;45 C c;46 char n[4] = {0};47 std::mbstate_t m;48 char* np = nullptr;49 std::codecvt_base::result r = c.unshift(m, n, n+4, np);50 assert(r == std::codecvt_base::noconv);51 }52 {53 typedef std::codecvt_utf8_utf16<char32_t> C;54 C c;55 char n[4] = {0};56 std::mbstate_t m;57 char* np = nullptr;58 std::codecvt_base::result r = c.unshift(m, n, n+4, np);59 assert(r == std::codecvt_base::noconv);60 }61 62 return 0;63}64