1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <locale> 11 12 // wstring_convert<Codecvt, Elem, Wide_alloc, Byte_alloc> 13 14 // byte_string to_bytes(Elem wchar); 15 // byte_string to_bytes(const Elem* wptr); 16 // byte_string to_bytes(const wide_string& wstr); 17 // byte_string to_bytes(const Elem* first, const Elem* last); 18 19 #include <locale> 20 #include <codecvt> 21 #include <cassert> 22 23 template <class CharT, size_t = sizeof(CharT)> 24 struct TestHelper; 25 template <class CharT> 26 struct TestHelper<CharT, 2> { 27 static void test(); 28 }; 29 template <class CharT> 30 struct TestHelper<CharT, 4> { 31 static void test(); 32 }; 33 34 template <class CharT> 35 void TestHelper<CharT, 2>::test() { 36 static_assert((std::is_same<CharT, wchar_t>::value), ""); 37 { 38 std::wstring_convert<std::codecvt_utf8<CharT> > myconv; 39 std::wstring ws(1, CharT(0x1005)); 40 std::string bs = myconv.to_bytes(ws[0]); 41 assert(bs == "\xE1\x80\x85\x00"); 42 bs = myconv.to_bytes(ws.c_str()); 43 assert(bs == "\xE1\x80\x85\x00"); 44 bs = myconv.to_bytes(ws); 45 assert(bs == "\xE1\x80\x85\x00"); 46 bs = myconv.to_bytes(ws.data(), ws.data() + ws.size()); 47 assert(bs == "\xE1\x80\x85\x00"); 48 bs = myconv.to_bytes(L""); 49 assert(bs.size() == 0); 50 } 51 } 52 53 template <class CharT> 54 void TestHelper<CharT, 4>::test() { 55 static_assert((std::is_same<CharT, wchar_t>::value), ""); 56 { 57 std::wstring_convert<std::codecvt_utf8<CharT> > myconv; 58 std::wstring ws(1, CharT(0x40003)); 59 std::string bs = myconv.to_bytes(ws[0]); 60 assert(bs == "\xF1\x80\x80\x83"); 61 bs = myconv.to_bytes(ws.c_str()); 62 assert(bs == "\xF1\x80\x80\x83"); 63 bs = myconv.to_bytes(ws); 64 assert(bs == "\xF1\x80\x80\x83"); 65 bs = myconv.to_bytes(ws.data(), ws.data() + ws.size()); 66 assert(bs == "\xF1\x80\x80\x83"); 67 bs = myconv.to_bytes(L""); 68 assert(bs.size() == 0); 69 } 70 } 71 72 int main() { TestHelper<wchar_t>::test(); } 73
