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cd9b223a | 1 | // { dg-options "-std=gnu++14" } |
77cba5af | 2 | |
818ab71a | 3 | // Copyright (C) 2013-2016 Free Software Foundation, Inc. |
77cba5af ESR |
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 | ||
32 | #include <experimental/string_view> | |
33 | #include <cstring> | |
34 | #include <testsuite_hooks.h> | |
35 | ||
36 | enum want_value {lt=0, z=1, gt=2}; | |
37 | ||
38 | int | |
39 | test_value(int result, want_value expected); | |
40 | ||
41 | int | |
42 | test_value(int result, want_value expected) | |
43 | { | |
44 | bool test [[gnu::unused]] = true; | |
45 | bool pass = false; | |
46 | ||
47 | switch (expected) { | |
48 | case lt: | |
49 | if (result < 0) | |
50 | pass = true; | |
51 | break; | |
52 | case z: | |
53 | if (!result) | |
54 | pass = true; | |
55 | break; | |
56 | case gt: | |
57 | if (result > 0) | |
58 | pass = true; | |
59 | break; | |
60 | default: | |
61 | pass = false; //should not get here | |
62 | } | |
63 | VERIFY(pass); | |
64 | return 0; | |
65 | } | |
66 | ||
67 | ||
68 | int | |
69 | test01() | |
70 | { | |
71 | using namespace std::experimental; | |
72 | ||
73 | string_view str_0("costa rica"); | |
74 | string_view str_1("costa marbella"); | |
75 | string_view str_2; | |
76 | ||
77 | //sanity check | |
78 | test_value(strcmp("costa marbella", "costa rica"), lt); | |
79 | test_value(strcmp("costa rica", "costa rica"), z); | |
80 | test_value(strcmp(str_1.data(), str_0.data()), lt); | |
81 | test_value(strcmp(str_0.data(), str_1.data()), gt); | |
82 | test_value(strncmp(str_1.data(), str_0.data(), 6), z); | |
83 | test_value(strncmp(str_1.data(), str_0.data(), 14), lt); | |
84 | test_value(memcmp(str_1.data(), str_0.data(), 6), z); | |
e93a101f JW |
85 | test_value(memcmp(str_1.data(), str_0.data(), 10), lt); |
86 | test_value(memcmp("costa marbella", "costa rica", 10), lt); | |
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87 | |
88 | // int compare(const basic_string_view& str) const; | |
89 | test_value(str_0.compare(str_1), gt); //because r>m | |
90 | test_value(str_1.compare(str_0), lt); //because m<r | |
91 | str_2 = str_0; | |
92 | test_value(str_2.compare(str_0), z); | |
93 | str_2 = "cost"; | |
94 | test_value(str_2.compare(str_0), lt); | |
95 | str_2 = "costa ricans"; | |
96 | test_value(str_2.compare(str_0), gt); | |
97 | ||
98 | // int compare(size_type pos1, size_type n1, const basic_string_view& str) const; | |
99 | test_value(str_1.compare(0, 6, str_0), lt); | |
100 | str_2 = "cost"; | |
101 | test_value(str_1.compare(0, 4, str_2), z); | |
102 | test_value(str_1.compare(0, 5, str_2), gt); | |
103 | ||
104 | // int compare(size_type pos1, size_type n1, const basic_string_view& str, | |
105 | // size_type pos2, size_type n2) const; | |
106 | test_value(str_1.compare(0, 6, str_0, 0, 6), z); | |
107 | test_value(str_1.compare(0, 7, str_0, 0, 7), lt); | |
108 | test_value(str_0.compare(0, 7, str_1, 0, 7), gt); | |
109 | ||
110 | // int compare(const charT* s) const; | |
111 | test_value(str_0.compare("costa marbella"), gt); | |
112 | test_value(str_1.compare("costa rica"), lt); | |
113 | str_2 = str_0; | |
114 | test_value(str_2.compare("costa rica"), z); | |
115 | test_value(str_2.compare("cost"), gt); | |
116 | test_value(str_2.compare("costa ricans"), lt); | |
117 | ||
118 | // int compare(size_type pos, size_type n1, const charT* str, | |
119 | // size_type n2 = npos) const; | |
120 | test_value(str_1.compare(0, 6, "costa rica", 0, 6), z); | |
121 | test_value(str_1.compare(0, 7, "costa rica", 0, 7), lt); | |
122 | test_value(str_0.compare(0, 7, "costa marbella", 0, 7), gt); | |
123 | ||
124 | return 0; | |
125 | } | |
126 | ||
127 | ||
128 | int | |
129 | main() | |
130 | { | |
131 | test01(); | |
132 | ||
133 | return 0; | |
134 | } |