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
11 // UNSUPPORTED: c++98, c++03, c++11
12
13 #include <string>
14 #include <cassert>
15
16 #include "test_macros.h"
17
18 #if defined(__cpp_lib_char8_t) && __cpp_lib_char8_t >= 201811L
19 typedef std::u8string u8string;
20 #else
21 typedef std::string u8string;
22 #endif
23
24
main()25 int main()
26 {
27 using namespace std::literals::string_literals;
28
29 static_assert ( std::is_same<decltype( "Hi"s), std::string>::value, "" );
30 static_assert ( std::is_same<decltype( u8"Hi"s), u8string>::value, "" );
31 static_assert ( std::is_same<decltype( L"Hi"s), std::wstring>::value, "" );
32 static_assert ( std::is_same<decltype( u"Hi"s), std::u16string>::value, "" );
33 static_assert ( std::is_same<decltype( U"Hi"s), std::u32string>::value, "" );
34
35 std::string foo;
36 std::wstring Lfoo;
37 u8string u8foo;
38 std::u16string ufoo;
39 std::u32string Ufoo;
40
41 foo = ""s; assert( foo.size() == 0);
42 u8foo = u8""s; assert(u8foo.size() == 0);
43 Lfoo = L""s; assert( Lfoo.size() == 0);
44 ufoo = u""s; assert( ufoo.size() == 0);
45 Ufoo = U""s; assert( Ufoo.size() == 0);
46
47 foo = " "s; assert( foo.size() == 1);
48 u8foo = u8" "s; assert(u8foo.size() == 1);
49 Lfoo = L" "s; assert( Lfoo.size() == 1);
50 ufoo = u" "s; assert( ufoo.size() == 1);
51 Ufoo = U" "s; assert( Ufoo.size() == 1);
52
53 foo = "ABC"s; assert( foo == "ABC"); assert( foo == std::string ( "ABC"));
54 u8foo = u8"ABC"s; assert(u8foo == u8"ABC"); assert(u8foo == u8string (u8"ABC"));
55 Lfoo = L"ABC"s; assert( Lfoo == L"ABC"); assert( Lfoo == std::wstring ( L"ABC"));
56 ufoo = u"ABC"s; assert( ufoo == u"ABC"); assert( ufoo == std::u16string( u"ABC"));
57 Ufoo = U"ABC"s; assert( Ufoo == U"ABC"); assert( Ufoo == std::u32string( U"ABC"));
58 }
59