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