1/*=============================================================================
2 Copyright (c) 2018-2023 Nikita Kniazev
3
4 Distributed under the Boost Software License, Version 1.0. (See accompanying
5 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6=============================================================================*/
7#include <boost/spirit/home/support/utf8.hpp>
8#include <boost/core/lightweight_test.hpp>
9#include <boost/config.hpp>
10#include <string>
11
12#if defined(_MSC_VER) && _MSC_VER < 1700
13# pragma warning(disable: 4428) // universal-character-name encountered in source
14#endif
15
16static bool nowarn_constexpr(bool x) { return x; }
17
18int main()
19{
20 using boost::spirit::to_utf8;
21
22 BOOST_TEST_CSTR_EQ("\xED\x9F\xBF", to_utf8(0xD7FFul).c_str());
23 BOOST_TEST_CSTR_EQ("\xEE\x80\x80", to_utf8(0xE000ul).c_str());
24
25 if (nowarn_constexpr(x: sizeof(L"\u00FF") == 2))
26 BOOST_TEST_CSTR_EQ("\xC3\xBF", to_utf8(L"\u00FF"[0]).c_str());
27 if (nowarn_constexpr(x: sizeof(L"\uFFE1") == 2))
28 BOOST_TEST_CSTR_EQ("\xEF\xBF\xA1", to_utf8(L"\uFFE1"[0]).c_str());
29 if (nowarn_constexpr(x: sizeof(L"\U0001F9D0") == 2))
30 BOOST_TEST_CSTR_EQ("\xF0\x9F\xA7\x90", to_utf8(L"\U0001F9D0"[0]).c_str());
31 BOOST_TEST_CSTR_EQ("\xF0\x9F\xA7\x90\xF0\x9F\xA7\xA0", to_utf8(L"\U0001F9D0\U0001F9E0").c_str());
32 BOOST_TEST_CSTR_EQ("\xF0\x9F\xA7\x90\xF0\x9F\xA7\xA0", to_utf8(std::wstring(L"\U0001F9D0\U0001F9E0")).c_str());
33
34#ifndef BOOST_NO_CXX11_UNICODE_LITERALS
35 BOOST_TEST_CSTR_EQ("\xC3\xBF", to_utf8(U'\u00FF').c_str());
36 BOOST_TEST_CSTR_EQ("\xEF\xBF\xA1", to_utf8(U'\uFFE1').c_str());
37 BOOST_TEST_CSTR_EQ("\xF0\x9F\xA7\x90", to_utf8(U'\U0001F9D0').c_str());
38 BOOST_TEST_CSTR_EQ("\xF0\x9F\xA7\x90\xF0\x9F\xA7\xA0", to_utf8(U"\U0001F9D0\U0001F9E0").c_str());
39 BOOST_TEST_CSTR_EQ("\xF0\x9F\xA7\x90\xF0\x9F\xA7\xA0", to_utf8(std::u32string(U"\U0001F9D0\U0001F9E0")).c_str());
40#endif
41
42 return boost::report_errors();
43}
44

source code of boost/libs/spirit/test/qi/to_utf8.cpp