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1 | // { dg-options "-std=gnu++17" } |
2 | ||
42a4f53d | 3 | // Copyright (C) 2013-2019 Free Software Foundation, Inc. |
fdc11678 SM |
4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
9 | // any later version. | |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // You should have received a copy of the GNU General Public License along | |
17 | // with this library; see the file COPYING3. If not see | |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
20 | // basic_string_view::compare | |
21 | // int compare(const basic_string_view& str) const; | |
22 | // int compare(size_type pos1, size_type n1, const basic_string_view& str) const; | |
23 | // int compare(size_type pos1, size_type n1, const basic_string_view& str, | |
24 | // size_type pos2, size_type n2) const; | |
25 | // int compare(const charT* s) const; | |
26 | // int compare(size_type pos1, size_type n1, | |
27 | // const charT* s, size_type n2 = npos) const; | |
28 | ||
29 | // NB compare should be thought of as a lexographical compare, ie how | |
30 | // things would be sorted in a dictionary. | |
31 | ||
c9638d26 | 32 | namespace operations_compare_1 { |
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33 | |
34 | enum want_value {lt=0, z=1, gt=2}; | |
35 | ||
36 | int | |
37 | test_value(int result, want_value expected); | |
38 | ||
39 | int | |
40 | test_value(int result, want_value expected) | |
41 | { | |
42 | bool pass = false; | |
43 | ||
44 | switch (expected) { | |
45 | case lt: | |
46 | if (result < 0) | |
47 | pass = true; | |
48 | break; | |
49 | case z: | |
50 | if (!result) | |
51 | pass = true; | |
52 | break; | |
53 | case gt: | |
54 | if (result > 0) | |
55 | pass = true; | |
56 | break; | |
57 | default: | |
58 | pass = false; //should not get here | |
59 | } | |
60 | VERIFY(pass); | |
61 | return 0; | |
62 | } | |
63 | ||
64 | int | |
65 | test01() | |
66 | { | |
c9638d26 | 67 | using gdb::string_view; |
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68 | |
69 | string_view str_0("costa rica"); | |
70 | string_view str_1("costa marbella"); | |
71 | string_view str_2; | |
72 | ||
73 | //sanity check | |
74 | test_value(strcmp("costa marbella", "costa rica"), lt); | |
75 | test_value(strcmp("costa rica", "costa rica"), z); | |
76 | test_value(strcmp(str_1.data(), str_0.data()), lt); | |
77 | test_value(strcmp(str_0.data(), str_1.data()), gt); | |
78 | test_value(strncmp(str_1.data(), str_0.data(), 6), z); | |
79 | test_value(strncmp(str_1.data(), str_0.data(), 14), lt); | |
80 | test_value(memcmp(str_1.data(), str_0.data(), 6), z); | |
81 | test_value(memcmp(str_1.data(), str_0.data(), 10), lt); | |
82 | test_value(memcmp("costa marbella", "costa rica", 10), lt); | |
83 | ||
84 | // int compare(const basic_string_view& str) const; | |
85 | test_value(str_0.compare(str_1), gt); //because r>m | |
86 | test_value(str_1.compare(str_0), lt); //because m<r | |
87 | str_2 = str_0; | |
88 | test_value(str_2.compare(str_0), z); | |
89 | str_2 = "cost"; | |
90 | test_value(str_2.compare(str_0), lt); | |
91 | str_2 = "costa ricans"; | |
92 | test_value(str_2.compare(str_0), gt); | |
93 | ||
94 | // int compare(size_type pos1, size_type n1, const basic_string_view& str) const; | |
95 | test_value(str_1.compare(0, 6, str_0), lt); | |
96 | str_2 = "cost"; | |
97 | test_value(str_1.compare(0, 4, str_2), z); | |
98 | test_value(str_1.compare(0, 5, str_2), gt); | |
99 | ||
100 | // int compare(size_type pos1, size_type n1, const basic_string_view& str, | |
101 | // size_type pos2, size_type n2) const; | |
102 | test_value(str_1.compare(0, 6, str_0, 0, 6), z); | |
103 | test_value(str_1.compare(0, 7, str_0, 0, 7), lt); | |
104 | test_value(str_0.compare(0, 7, str_1, 0, 7), gt); | |
105 | ||
106 | // int compare(const charT* s) const; | |
107 | test_value(str_0.compare("costa marbella"), gt); | |
108 | test_value(str_1.compare("costa rica"), lt); | |
109 | str_2 = str_0; | |
110 | test_value(str_2.compare("costa rica"), z); | |
111 | test_value(str_2.compare("cost"), gt); | |
112 | test_value(str_2.compare("costa ricans"), lt); | |
113 | ||
114 | // int compare(size_type pos, size_type n1, const charT* str, | |
115 | // size_type n2 = npos) const; | |
116 | test_value(str_1.compare(0, 6, "costa rica", 0, 6), z); | |
117 | test_value(str_1.compare(0, 7, "costa rica", 0, 7), lt); | |
118 | test_value(str_0.compare(0, 7, "costa marbella", 0, 7), gt); | |
119 | ||
120 | return 0; | |
121 | } | |
122 | ||
123 | ||
124 | int | |
125 | main() | |
126 | { | |
127 | test01(); | |
128 | ||
129 | return 0; | |
130 | } | |
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131 | |
132 | } // namespace operations_compare_1 |