1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // <string>
10
11 // template<class charT, class traits, class Allocator>
12 // constexpr bool operator>=(const charT* lhs, basic_string_view<charT,traits> rhs);
13 // template<class charT, class traits, class Allocator>
14 // constexpr bool operator>=(basic_string_view<charT,traits> lhs, const charT* rhs);
15
16 #include <string_view>
17 #include <cassert>
18
19 #include "test_macros.h"
20 #include "constexpr_char_traits.h"
21
22 template <class S>
23 void
test(const typename S::value_type * lhs,const S & rhs,bool x,bool y)24 test(const typename S::value_type* lhs, const S& rhs, bool x, bool y)
25 {
26 assert((lhs >= rhs) == x);
27 assert((rhs >= lhs) == y);
28 }
29
main(int,char **)30 int main(int, char**)
31 {
32 {
33 typedef std::string_view S;
34 test("", S(""), true, true);
35 test("", S("abcde"), false, true);
36 test("", S("abcdefghij"), false, true);
37 test("", S("abcdefghijklmnopqrst"), false, true);
38 test("abcde", S(""), true, false);
39 test("abcde", S("abcde"), true, true);
40 test("abcde", S("abcdefghij"), false, true);
41 test("abcde", S("abcdefghijklmnopqrst"), false, true);
42 test("abcdefghij", S(""), true, false);
43 test("abcdefghij", S("abcde"), true, false);
44 test("abcdefghij", S("abcdefghij"), true, true);
45 test("abcdefghij", S("abcdefghijklmnopqrst"), false, true);
46 test("abcdefghijklmnopqrst", S(""), true, false);
47 test("abcdefghijklmnopqrst", S("abcde"), true, false);
48 test("abcdefghijklmnopqrst", S("abcdefghij"), true, false);
49 test("abcdefghijklmnopqrst", S("abcdefghijklmnopqrst"), true, true);
50 }
51
52 #if TEST_STD_VER > 11
53 {
54 typedef std::basic_string_view<char, constexpr_char_traits<char>> SV;
55 constexpr SV sv1;
56 constexpr SV sv2 { "abcde", 5 };
57
58 static_assert ( sv1 >= "", "" );
59 static_assert ( "" >= sv1, "" );
60 static_assert (!(sv1 >= "abcde"), "" );
61 static_assert ( "abcde" >= sv1, "" );
62
63 static_assert ( sv2 >= "", "" );
64 static_assert (!("" >= sv2), "" );
65 static_assert ( sv2 >= "abcde", "" );
66 static_assert ( "abcde" >= sv2, "" );
67 static_assert (!(sv2 >= "abcde0"), "" );
68 static_assert ( "abcde0" >= sv2, "" );
69 }
70 #endif
71
72 return 0;
73 }
74