1 // -*- C++ -*-
2 //===----------------------------------------------------------------------===//
3 //
4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5 // See https://llvm.org/LICENSE.txt for license information.
6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //
8 //===----------------------------------------------------------------------===//
9
10 // UNSUPPORTED: c++03, c++11
11
12 #include <string>
13 #include <cassert>
14
15 #include "test_macros.h"
16
17 #if defined(__cpp_lib_char8_t) && __cpp_lib_char8_t >= 201811L
18 typedef std::u8string u8string;
19 #else
20 typedef std::string u8string;
21 #endif
22
23
main(int,char **)24 int main(int, char**)
25 {
26 using namespace std::literals::string_literals;
27
28 static_assert ( std::is_same<decltype( "Hi"s), std::string>::value, "" );
29 static_assert ( std::is_same<decltype( u8"Hi"s), u8string>::value, "" );
30 static_assert ( std::is_same<decltype( L"Hi"s), std::wstring>::value, "" );
31 static_assert ( std::is_same<decltype( u"Hi"s), std::u16string>::value, "" );
32 static_assert ( std::is_same<decltype( U"Hi"s), std::u32string>::value, "" );
33
34 std::string foo;
35 std::wstring Lfoo;
36 u8string u8foo;
37 std::u16string ufoo;
38 std::u32string Ufoo;
39
40 foo = ""s; assert( foo.size() == 0);
41 u8foo = u8""s; assert(u8foo.size() == 0);
42 Lfoo = L""s; assert( Lfoo.size() == 0);
43 ufoo = u""s; assert( ufoo.size() == 0);
44 Ufoo = U""s; assert( Ufoo.size() == 0);
45
46 foo = " "s; assert( foo.size() == 1);
47 u8foo = u8" "s; assert(u8foo.size() == 1);
48 Lfoo = L" "s; assert( Lfoo.size() == 1);
49 ufoo = u" "s; assert( ufoo.size() == 1);
50 Ufoo = U" "s; assert( Ufoo.size() == 1);
51
52 foo = "ABC"s; assert( foo == "ABC"); assert( foo == std::string ( "ABC"));
53 u8foo = u8"ABC"s; assert(u8foo == u8"ABC"); assert(u8foo == u8string (u8"ABC"));
54 Lfoo = L"ABC"s; assert( Lfoo == L"ABC"); assert( Lfoo == std::wstring ( L"ABC"));
55 ufoo = u"ABC"s; assert( ufoo == u"ABC"); assert( ufoo == std::u16string( u"ABC"));
56 Ufoo = U"ABC"s; assert( Ufoo == U"ABC"); assert( Ufoo == std::u32string( U"ABC"));
57
58 return 0;
59 }
60