81 lines
1.7 KiB
C++
81 lines
1.7 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <codecvt>
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// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
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// template <class Elem, unsigned long Maxcode = 0x10ffff,
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// codecvt_mode Mode = (codecvt_mode)0>
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// class codecvt_utf16
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// : public codecvt<Elem, char, mbstate_t>
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// {
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// // unspecified
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// };
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// int max_length() const throw();
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#include <codecvt>
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#include <cassert>
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#include "test_macros.h"
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template <class CharT, size_t = sizeof(CharT)>
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struct TestHelper;
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template <class CharT>
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struct TestHelper<CharT, 2> {
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static void test();
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};
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template <class CharT>
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struct TestHelper<CharT, 4> {
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static void test();
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};
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template <class CharT>
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void TestHelper<CharT, 2>::test() {
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{
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typedef std::codecvt_utf16<CharT> C;
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C c;
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int r = c.max_length();
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assert(r == 2);
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}
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{
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typedef std::codecvt_utf16<CharT, 0xFFFFFFFF, std::consume_header> C;
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C c;
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int r = c.max_length();
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assert(r == 4);
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}
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}
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template <class CharT>
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void TestHelper<CharT, 4>::test() {
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{
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typedef std::codecvt_utf16<CharT> C;
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C c;
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int r = c.max_length();
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assert(r == 4);
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}
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{
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typedef std::codecvt_utf16<CharT, 0xFFFFFFFF, std::consume_header> C;
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C c;
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int r = c.max_length();
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assert(r == 6);
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}
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}
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int main(int, char**) {
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#ifndef TEST_HAS_NO_WIDE_CHARACTERS
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TestHelper<wchar_t>::test();
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#endif
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TestHelper<char16_t>::test();
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TestHelper<char32_t>::test();
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return 0;
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}
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