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//===----------------------------------------------------------------------===//
//
// 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
// };
// int max_length() const throw();
#include <codecvt>
#include <cassert>
#include "test_macros.h"
template <class CharT, std::size_t = sizeof(CharT)>
struct TestHelper;
template <class CharT>
struct TestHelper<CharT, 2> {
static void test();
};
template <class CharT>
struct TestHelper<CharT, 4> {
static void test();
};
template <class CharT>
void TestHelper<CharT, 2>::test() {
{
typedef std::codecvt_utf8<CharT> C;
C c;
int r = c.max_length();
assert(r == 3);
}
{
typedef std::codecvt_utf8<CharT, 0xFFFFFFFF, std::consume_header> C;
C c;
int r = c.max_length();
assert(r == 6);
}
}
template <class CharT>
void TestHelper<CharT, 4>::test() {
{
typedef std::codecvt_utf8<CharT> C;
C c;
int r = c.max_length();
assert(r == 4);
}
{
typedef std::codecvt_utf8<CharT, 0xFFFFFFFF, std::consume_header> C;
C c;
int r = c.max_length();
assert(r == 7);
}
}
int main(int, char**) {
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
TestHelper<wchar_t>::test();
#endif
TestHelper<char16_t>::test();
TestHelper<char32_t>::test();
return 0;
}
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