//===----------------------------------------------------------------------===//
//
// 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_utf16
// : public codecvt<Elem, char, mbstate_t>
// {
// // unspecified
// };
// result
// in(stateT& state,
// const externT* from, const externT* from_end, const externT*& from_next,
// internT* to, internT* to_end, internT*& to_next) const;
#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_utf16<CharT, 0x1000> C;
C c;
CharT w[2] = {0};
char n[4] = {char(0xF1), char(0x80), char(0x80), char(0x83)};
CharT* wp = nullptr;
std::mbstate_t m;
const char* np = nullptr;
std::codecvt_base::result r = c.in(m, n, n + 4, np, w, w + 2, wp);
assert(r == std::codecvt_base::error);
assert(wp == w);
assert(np == n);
n[0] = char(0xE1);
n[1] = char(0x80);
n[2] = char(0x85);
r = c.in(m, n, n + 3, np, w, w + 2, wp);
assert(r == std::codecvt_base::error);
assert(wp == w);
assert(np == n);
n[0] = char(0xD1);
n[1] = char(0x93);
r = c.in(m, n, n + 2, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 1);
assert(np == n + 2);
assert(w[0] == 0x0453);
n[0] = char(0x56);
r = c.in(m, n, n + 1, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 1);
assert(np == n + 1);
assert(w[0] == 0x0056);
}
{
typedef std::codecvt_utf8_utf16<CharT, 0x10ffff, std::consume_header> C;
C c;
CharT w[2] = {0};
char n[7] = {char(0xEF), char(0xBB), char(0xBF), char(0xF1),
char(0x80), char(0x80), char(0x83)};
CharT* wp = nullptr;
std::mbstate_t m;
const char* np = nullptr;
std::codecvt_base::result r = c.in(m, n, n + 7, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 2);
assert(np == n + 7);
assert(w[0] == 0xD8C0);
assert(w[1] == 0xDC03);
n[0] = char(0xE1);
n[1] = char(0x80);
n[2] = char(0x85);
r = c.in(m, n, n + 3, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 1);
assert(np == n + 3);
assert(w[0] == 0x1005);
n[0] = char(0xD1);
n[1] = char(0x93);
r = c.in(m, n, n + 2, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 1);
assert(np == n + 2);
assert(w[0] == 0x0453);
n[0] = char(0x56);
r = c.in(m, n, n + 1, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 1);
assert(np == n + 1);
assert(w[0] == 0x0056);
}
}
template <class CharT>
void TestHelper<CharT, 4>::test() {
{
typedef std::codecvt_utf8_utf16<CharT> C;
C c;
CharT w[2] = {0};
char n[4] = {char(0xF1), char(0x80), char(0x80), char(0x83)};
CharT* wp = nullptr;
std::mbstate_t m;
const char* np = nullptr;
std::codecvt_base::result r = c.in(m, n, n + 4, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 2);
assert(np == n + 4);
assert(w[0] == 0xD8C0);
assert(w[1] == 0xDC03);
n[0] = char(0xE1);
n[1] = char(0x80);
n[2] = char(0x85);
r = c.in(m, n, n + 3, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 1);
assert(np == n + 3);
assert(w[0] == 0x1005);
n[0] = char(0xD1);
n[1] = char(0x93);
r = c.in(m, n, n + 2, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 1);
assert(np == n + 2);
assert(w[0] == 0x0453);
n[0] = char(0x56);
r = c.in(m, n, n + 1, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 1);
assert(np == n + 1);
assert(w[0] == 0x0056);
}
{
typedef std::codecvt_utf8_utf16<CharT, 0x1000> C;
C c;
CharT w[2] = {0};
char n[4] = {char(0xF1), char(0x80), char(0x80), char(0x83)};
CharT* wp = nullptr;
std::mbstate_t m;
const char* np = nullptr;
std::codecvt_base::result r = c.in(m, n, n + 4, np, w, w + 2, wp);
assert(r == std::codecvt_base::error);
assert(wp == w);
assert(np == n);
n[0] = char(0xE1);
n[1] = char(0x80);
n[2] = char(0x85);
r = c.in(m, n, n + 3, np, w, w + 2, wp);
assert(r == std::codecvt_base::error);
assert(wp == w);
assert(np == n);
n[0] = char(0xD1);
n[1] = char(0x93);
r = c.in(m, n, n + 2, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 1);
assert(np == n + 2);
assert(w[0] == 0x0453);
n[0] = char(0x56);
r = c.in(m, n, n + 1, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 1);
assert(np == n + 1);
assert(w[0] == 0x0056);
}
{
typedef std::codecvt_utf8_utf16<CharT, 0x10ffff, std::consume_header> C;
C c;
CharT w[2] = {0};
char n[7] = {char(0xEF), char(0xBB), char(0xBF), char(0xF1),
char(0x80), char(0x80), char(0x83)};
CharT* wp = nullptr;
std::mbstate_t m;
const char* np = nullptr;
std::codecvt_base::result r = c.in(m, n, n + 7, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 2);
assert(np == n + 7);
assert(w[0] == 0xD8C0);
assert(w[1] == 0xDC03);
n[0] = char(0xE1);
n[1] = char(0x80);
n[2] = char(0x85);
r = c.in(m, n, n + 3, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 1);
assert(np == n + 3);
assert(w[0] == 0x1005);
n[0] = char(0xD1);
n[1] = char(0x93);
r = c.in(m, n, n + 2, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 1);
assert(np == n + 2);
assert(w[0] == 0x0453);
n[0] = char(0x56);
r = c.in(m, n, n + 1, np, w, w + 2, wp);
assert(r == std::codecvt_base::ok);
assert(wp == w + 1);
assert(np == n + 1);
assert(w[0] == 0x0056);
}
}
int main(int, char**) {
#if !defined(_WIN32) && !defined(TEST_HAS_NO_WIDE_CHARACTERS)
TestHelper<wchar_t>::test();
#endif
TestHelper<char32_t>::test();
TestHelper<char16_t>::test();
return 0;
}
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