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73 lines
2.1 KiB
C++
73 lines
2.1 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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// <locale>
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// wstring_convert<Codecvt, Elem, Wide_alloc, Byte_alloc>
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// byte_string to_bytes(Elem wchar);
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// byte_string to_bytes(const Elem* wptr);
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// byte_string to_bytes(const wide_string& wstr);
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// byte_string to_bytes(const Elem* first, const Elem* last);
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#include <locale>
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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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static_assert((std::is_same<CharT, wchar_t>::value), "");
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{
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std::wstring_convert<std::codecvt_utf8<CharT> > myconv;
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std::wstring ws(1, CharT(0x1005));
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std::string bs = myconv.to_bytes(ws[0]);
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assert(bs == "\xE1\x80\x85\x00");
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bs = myconv.to_bytes(ws.c_str());
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assert(bs == "\xE1\x80\x85\x00");
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bs = myconv.to_bytes(ws);
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assert(bs == "\xE1\x80\x85\x00");
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bs = myconv.to_bytes(ws.data(), ws.data() + ws.size());
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assert(bs == "\xE1\x80\x85\x00");
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bs = myconv.to_bytes(L"");
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assert(bs.size() == 0);
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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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static_assert((std::is_same<CharT, wchar_t>::value), "");
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{
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std::wstring_convert<std::codecvt_utf8<CharT> > myconv;
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std::wstring ws(1, CharT(0x40003));
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std::string bs = myconv.to_bytes(ws[0]);
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assert(bs == "\xF1\x80\x80\x83");
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bs = myconv.to_bytes(ws.c_str());
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assert(bs == "\xF1\x80\x80\x83");
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bs = myconv.to_bytes(ws);
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assert(bs == "\xF1\x80\x80\x83");
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bs = myconv.to_bytes(ws.data(), ws.data() + ws.size());
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assert(bs == "\xF1\x80\x80\x83");
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bs = myconv.to_bytes(L"");
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assert(bs.size() == 0);
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}
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}
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int main() { TestHelper<wchar_t>::test(); }
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