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245 lines
6.5 KiB
C++
245 lines
6.5 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <codecvt>
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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_utf8_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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// result
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// in(stateT& state,
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// const externT* from, const externT* from_end, const externT*& from_next,
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// internT* to, internT* to_end, internT*& to_next) const;
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#include <codecvt>
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#include <cassert>
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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_utf8_utf16<CharT, 0x1000> C;
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C c;
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CharT w[2] = {0};
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char n[4] = {char(0xF1), char(0x80), char(0x80), char(0x83)};
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CharT* wp = nullptr;
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std::mbstate_t m;
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const char* np = nullptr;
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std::codecvt_base::result r = c.in(m, n, n + 4, np, w, w + 2, wp);
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assert(r == std::codecvt_base::error);
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assert(wp == w);
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assert(np == n);
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n[0] = char(0xE1);
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n[1] = char(0x80);
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n[2] = char(0x85);
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r = c.in(m, n, n + 3, np, w, w + 2, wp);
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assert(r == std::codecvt_base::error);
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assert(wp == w);
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assert(np == n);
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n[0] = char(0xD1);
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n[1] = char(0x93);
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r = c.in(m, n, n + 2, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 1);
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assert(np == n + 2);
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assert(w[0] == 0x0453);
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n[0] = char(0x56);
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r = c.in(m, n, n + 1, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 1);
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assert(np == n + 1);
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assert(w[0] == 0x0056);
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}
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{
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typedef std::codecvt_utf8_utf16<CharT, 0x10ffff, std::consume_header> C;
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C c;
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CharT w[2] = {0};
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char n[7] = {char(0xEF), char(0xBB), char(0xBF), char(0xF1),
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char(0x80), char(0x80), char(0x83)};
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CharT* wp = nullptr;
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std::mbstate_t m;
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const char* np = nullptr;
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std::codecvt_base::result r = c.in(m, n, n + 7, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 2);
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assert(np == n + 7);
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assert(w[0] == 0xD8C0);
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assert(w[1] == 0xDC03);
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n[0] = char(0xE1);
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n[1] = char(0x80);
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n[2] = char(0x85);
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r = c.in(m, n, n + 3, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 1);
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assert(np == n + 3);
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assert(w[0] == 0x1005);
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n[0] = char(0xD1);
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n[1] = char(0x93);
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r = c.in(m, n, n + 2, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 1);
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assert(np == n + 2);
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assert(w[0] == 0x0453);
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n[0] = char(0x56);
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r = c.in(m, n, n + 1, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 1);
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assert(np == n + 1);
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assert(w[0] == 0x0056);
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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_utf8_utf16<CharT> C;
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C c;
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CharT w[2] = {0};
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char n[4] = {char(0xF1), char(0x80), char(0x80), char(0x83)};
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CharT* wp = nullptr;
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std::mbstate_t m;
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const char* np = nullptr;
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std::codecvt_base::result r = c.in(m, n, n + 4, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 2);
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assert(np == n + 4);
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assert(w[0] == 0xD8C0);
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assert(w[1] == 0xDC03);
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n[0] = char(0xE1);
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n[1] = char(0x80);
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n[2] = char(0x85);
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r = c.in(m, n, n + 3, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 1);
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assert(np == n + 3);
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assert(w[0] == 0x1005);
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n[0] = char(0xD1);
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n[1] = char(0x93);
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r = c.in(m, n, n + 2, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 1);
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assert(np == n + 2);
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assert(w[0] == 0x0453);
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n[0] = char(0x56);
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r = c.in(m, n, n + 1, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 1);
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assert(np == n + 1);
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assert(w[0] == 0x0056);
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}
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{
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typedef std::codecvt_utf8_utf16<CharT, 0x1000> C;
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C c;
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CharT w[2] = {0};
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char n[4] = {char(0xF1), char(0x80), char(0x80), char(0x83)};
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CharT* wp = nullptr;
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std::mbstate_t m;
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const char* np = nullptr;
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std::codecvt_base::result r = c.in(m, n, n + 4, np, w, w + 2, wp);
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assert(r == std::codecvt_base::error);
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assert(wp == w);
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assert(np == n);
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n[0] = char(0xE1);
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n[1] = char(0x80);
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n[2] = char(0x85);
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r = c.in(m, n, n + 3, np, w, w + 2, wp);
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assert(r == std::codecvt_base::error);
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assert(wp == w);
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assert(np == n);
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n[0] = char(0xD1);
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n[1] = char(0x93);
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r = c.in(m, n, n + 2, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 1);
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assert(np == n + 2);
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assert(w[0] == 0x0453);
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n[0] = char(0x56);
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r = c.in(m, n, n + 1, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 1);
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assert(np == n + 1);
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assert(w[0] == 0x0056);
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}
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{
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typedef std::codecvt_utf8_utf16<CharT, 0x10ffff, std::consume_header> C;
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C c;
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CharT w[2] = {0};
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char n[7] = {char(0xEF), char(0xBB), char(0xBF), char(0xF1),
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char(0x80), char(0x80), char(0x83)};
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CharT* wp = nullptr;
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std::mbstate_t m;
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const char* np = nullptr;
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std::codecvt_base::result r = c.in(m, n, n + 7, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 2);
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assert(np == n + 7);
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assert(w[0] == 0xD8C0);
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assert(w[1] == 0xDC03);
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n[0] = char(0xE1);
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n[1] = char(0x80);
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n[2] = char(0x85);
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r = c.in(m, n, n + 3, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 1);
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assert(np == n + 3);
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assert(w[0] == 0x1005);
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n[0] = char(0xD1);
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n[1] = char(0x93);
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r = c.in(m, n, n + 2, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 1);
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assert(np == n + 2);
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assert(w[0] == 0x0453);
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n[0] = char(0x56);
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r = c.in(m, n, n + 1, np, w, w + 2, wp);
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assert(r == std::codecvt_base::ok);
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assert(wp == w + 1);
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assert(np == n + 1);
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assert(w[0] == 0x0056);
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}
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}
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int main() {
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#ifndef _WIN32
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TestHelper<wchar_t>::test();
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#endif
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TestHelper<char32_t>::test();
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TestHelper<char16_t>::test();
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}
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