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 // <string>
11
12 // template<class charT, class traits, class Allocator>
13 // bool operator==(const charT* lhs, const basic_string<charT,traits> rhs);
14 // template<class charT, class traits, class Allocator>
15 // bool operator==(const basic_string_view<charT,traits> lhs, const CharT* rhs);
16
17 #include <experimental/string_view>
18 #include <cassert>
19
20 #if _LIBCPP_STD_VER > 11
21
22 template <class S>
23 void
test(const std::string & lhs,S rhs,bool x)24 test(const std::string &lhs, S rhs, bool x)
25 {
26 assert((lhs == rhs) == x);
27 assert((rhs == lhs) == x);
28 }
29
main()30 int main()
31 {
32 {
33 typedef std::experimental::string_view S;
34 test("", S(""), true);
35 test("", S("abcde"), false);
36 test("", S("abcdefghij"), false);
37 test("", S("abcdefghijklmnopqrst"), false);
38 test("abcde", S(""), false);
39 test("abcde", S("abcde"), true);
40 test("abcde", S("abcdefghij"), false);
41 test("abcde", S("abcdefghijklmnopqrst"), false);
42 test("abcdefghij", S(""), false);
43 test("abcdefghij", S("abcde"), false);
44 test("abcdefghij", S("abcdefghij"), true);
45 test("abcdefghij", S("abcdefghijklmnopqrst"), false);
46 test("abcdefghijklmnopqrst", S(""), false);
47 test("abcdefghijklmnopqrst", S("abcde"), false);
48 test("abcdefghijklmnopqrst", S("abcdefghij"), false);
49 test("abcdefghijklmnopqrst", S("abcdefghijklmnopqrst"), true);
50 }
51 }
52 #else
main()53 int main () {}
54 #endif
55