1 // -*- C++ -*-
2 //===----------------------------------------------------------------------===//
3 //
4 // The LLVM Compiler Infrastructure
5 //
6 // This file is dual licensed under the MIT and the University of Illinois Open
7 // Source Licenses. See LICENSE.TXT for details.
8 //
9 //===----------------------------------------------------------------------===//
10 #include <string>
11 #include <cassert>
12
main()13 int main()
14 {
15 #if _LIBCPP_STD_VER > 11
16 using namespace std::literals::string_literals;
17
18 static_assert ( std::is_same<decltype( "Hi"s), std::string>::value, "" );
19 static_assert ( std::is_same<decltype( u8"Hi"s), std::string>::value, "" );
20 static_assert ( std::is_same<decltype( L"Hi"s), std::wstring>::value, "" );
21 static_assert ( std::is_same<decltype( u"Hi"s), std::u16string>::value, "" );
22 static_assert ( std::is_same<decltype( U"Hi"s), std::u32string>::value, "" );
23
24 std::string foo;
25 std::wstring Lfoo;
26 std::u16string ufoo;
27 std::u32string Ufoo;
28
29 foo = ""s; assert( foo.size() == 0);
30 foo = u8""s; assert( foo.size() == 0);
31 Lfoo = L""s; assert(Lfoo.size() == 0);
32 ufoo = u""s; assert(ufoo.size() == 0);
33 Ufoo = U""s; assert(Ufoo.size() == 0);
34
35 foo = " "s; assert( foo.size() == 1);
36 foo = u8" "s; assert( foo.size() == 1);
37 Lfoo = L" "s; assert(Lfoo.size() == 1);
38 ufoo = u" "s; assert(ufoo.size() == 1);
39 Ufoo = U" "s; assert(Ufoo.size() == 1);
40
41 foo = "ABC"s; assert( foo == "ABC"); assert( foo == std::string ( "ABC"));
42 foo = u8"ABC"s; assert( foo == u8"ABC"); assert( foo == std::string (u8"ABC"));
43 Lfoo = L"ABC"s; assert(Lfoo == L"ABC"); assert(Lfoo == std::wstring ( L"ABC"));
44 ufoo = u"ABC"s; assert(ufoo == u"ABC"); assert(ufoo == std::u16string( u"ABC"));
45 Ufoo = U"ABC"s; assert(Ufoo == U"ABC"); assert(Ufoo == std::u32string( U"ABC"));
46 #endif
47 }
48