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 // int compare(const basic_string_view sv) const
12
13 #include <string>
14 #include <cassert>
15
16 #include "test_macros.h"
17 #include "min_allocator.h"
18
sign(int x)19 int sign(int x)
20 {
21 if (x == 0)
22 return 0;
23 if (x < 0)
24 return -1;
25 return 1;
26 }
27
28 template <class S, class SV>
29 void
test(const S & s,SV sv,int x)30 test(const S& s, SV sv, int x)
31 {
32 assert(sign(s.compare(sv)) == sign(x));
33 }
34
main(int,char **)35 int main(int, char**)
36 {
37 {
38 typedef std::string S;
39 typedef std::string_view SV;
40 test(S(""), SV(""), 0);
41 test(S(""), SV("abcde"), -5);
42 test(S(""), SV("abcdefghij"), -10);
43 test(S(""), SV("abcdefghijklmnopqrst"), -20);
44 test(S("abcde"), SV(""), 5);
45 test(S("abcde"), SV("abcde"), 0);
46 test(S("abcde"), SV("abcdefghij"), -5);
47 test(S("abcde"), SV("abcdefghijklmnopqrst"), -15);
48 test(S("abcdefghij"), SV(""), 10);
49 test(S("abcdefghij"), SV("abcde"), 5);
50 test(S("abcdefghij"), SV("abcdefghij"), 0);
51 test(S("abcdefghij"), SV("abcdefghijklmnopqrst"), -10);
52 test(S("abcdefghijklmnopqrst"), SV(""), 20);
53 test(S("abcdefghijklmnopqrst"), SV("abcde"), 15);
54 test(S("abcdefghijklmnopqrst"), SV("abcdefghij"), 10);
55 test(S("abcdefghijklmnopqrst"), SV("abcdefghijklmnopqrst"), 0);
56 }
57 #if TEST_STD_VER >= 11
58 {
59 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
60 typedef std::string_view SV;
61 test(S(""), SV(""), 0);
62 test(S(""), SV("abcde"), -5);
63 test(S(""), SV("abcdefghij"), -10);
64 test(S(""), SV("abcdefghijklmnopqrst"), -20);
65 test(S("abcde"), SV(""), 5);
66 test(S("abcde"), SV("abcde"), 0);
67 test(S("abcde"), SV("abcdefghij"), -5);
68 test(S("abcde"), SV("abcdefghijklmnopqrst"), -15);
69 test(S("abcdefghij"), SV(""), 10);
70 test(S("abcdefghij"), SV("abcde"), 5);
71 test(S("abcdefghij"), SV("abcdefghij"), 0);
72 test(S("abcdefghij"), SV("abcdefghijklmnopqrst"), -10);
73 test(S("abcdefghijklmnopqrst"), SV(""), 20);
74 test(S("abcdefghijklmnopqrst"), SV("abcde"), 15);
75 test(S("abcdefghijklmnopqrst"), SV("abcdefghij"), 10);
76 test(S("abcdefghijklmnopqrst"), SV("abcdefghijklmnopqrst"), 0);
77 }
78 #endif
79
80 return 0;
81 }
82