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1 // Copyright (C) 2020-2023 Free Software Foundation, Inc.
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 3, or (at your option)
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING3. If not see
16 // <http://www.gnu.org/licenses/>.
18 // { dg-do run { target c++20 } }
20 // C++20 21.3.3.2 Non-member comparison functions [string.cmp]
24 template<class charT, class traits, class Allocator>
26 operator==(const basic_string<charT, traits, Allocator>& lhs,
27 const basic_string<charT, traits, Allocator>& rhs);
29 template<class charT, class traits, class Allocator>
31 operator==(const basic_string<charT, traits, Allocator>& lhs,
37 template<class charT, class traits, class Allocator>
39 operator<=>(const basic_string<charT, traits, Allocator>& lhs,
40 const basic_string<charT, traits, Allocator>& rhs);
42 template<class charT, class traits, class Allocator>
44 operator<=>(const basic_string<charT,traits,Allocator>& lhs,
49 #include <testsuite_hooks.h>
54 std::string
str_0("costa rica");
55 std::string
str_1("costa marbella");
56 std::string
str_2("cost");
57 std::string
str_3("costa ricans");
61 //comparisons between string objects
62 VERIFY( !(str_0
== str_1
) );
63 VERIFY( !(str_0
== str_2
) );
64 VERIFY( !(str_0
== str_3
) );
65 VERIFY( !(str_1
== str_0
) );
66 VERIFY( !(str_2
== str_0
) );
67 VERIFY( !(str_3
== str_0
) );
68 VERIFY( str_4
== str_0
);
69 VERIFY( str_0
== str_4
);
71 VERIFY( str_0
!= str_1
);
72 VERIFY( str_0
!= str_2
);
73 VERIFY( str_0
!= str_3
);
74 VERIFY( str_1
!= str_0
);
75 VERIFY( str_2
!= str_0
);
76 VERIFY( str_3
!= str_0
);
77 VERIFY( !(str_0
!= str_4
) );
78 VERIFY( !(str_4
!= str_0
) );
80 VERIFY( str_0
> str_1
); //true cuz r>m
81 VERIFY( str_0
> str_2
);
82 VERIFY( !(str_0
> str_3
) );
83 VERIFY( !(str_1
> str_0
) ); //false cuz m<r
84 VERIFY( !(str_2
> str_0
) );
85 VERIFY( str_3
> str_0
);
86 VERIFY( !(str_0
> str_4
) );
87 VERIFY( !(str_4
> str_0
) );
89 VERIFY( !(str_0
< str_1
) ); //false cuz r>m
90 VERIFY( !(str_0
< str_2
) );
91 VERIFY( str_0
< str_3
);
92 VERIFY( str_1
< str_0
); //true cuz m<r
93 VERIFY( str_2
< str_0
);
94 VERIFY( !(str_3
< str_0
) );
95 VERIFY( !(str_0
< str_4
) );
96 VERIFY( !(str_4
< str_0
) );
98 VERIFY( str_0
>= str_1
); //true cuz r>m
99 VERIFY( str_0
>= str_2
);
100 VERIFY( !(str_0
>= str_3
) );
101 VERIFY( !(str_1
>= str_0
) );//false cuz m<r
102 VERIFY( !(str_2
>= str_0
) );
103 VERIFY( str_3
>= str_0
);
104 VERIFY( str_0
>= str_4
);
105 VERIFY( str_4
>= str_0
);
107 VERIFY( !(str_0
<= str_1
) );//false cuz r>m
108 VERIFY( !(str_0
<= str_2
) );
109 VERIFY( str_0
<= str_3
);
110 VERIFY( str_1
<= str_0
);//true cuz m<r
111 VERIFY( str_2
<= str_0
);
112 VERIFY( !(str_3
<= str_0
) );
113 VERIFY( str_0
<= str_4
);
114 VERIFY( str_4
<= str_0
);
116 VERIFY( std::is_gt(str_0
<=> str_1
) );
117 VERIFY( std::is_gt(str_0
<=> str_2
) );
118 VERIFY( std::is_lt(str_0
<=> str_3
) );
119 VERIFY( std::is_eq(str_0
<=> str_4
) );
120 VERIFY( std::is_lt(str_1
<=> str_0
) );
121 VERIFY( std::is_lt(str_2
<=> str_0
) );
122 VERIFY( std::is_gt(str_3
<=> str_0
) );
123 VERIFY( std::is_eq(str_4
<=> str_0
) );
125 //comparisons between string object and string literal
126 VERIFY( !(str_0
== "costa marbella") );
127 VERIFY( !(str_0
== "cost") );
128 VERIFY( !(str_0
== "costa ricans") );
129 VERIFY( !("costa marbella" == str_0
) );
130 VERIFY( !("cost" == str_0
) );
131 VERIFY( !("costa ricans" == str_0
) );
132 VERIFY( "costa rica" == str_0
);
133 VERIFY( str_0
== "costa rica" );
135 VERIFY( str_0
!= "costa marbella" );
136 VERIFY( str_0
!= "cost" );
137 VERIFY( str_0
!= "costa ricans" );
138 VERIFY( "costa marbella" != str_0
);
139 VERIFY( "cost" != str_0
);
140 VERIFY( "costa ricans" != str_0
);
141 VERIFY( !("costa rica" != str_0
) );
142 VERIFY( !(str_0
!= "costa rica") );
144 VERIFY( str_0
> "costa marbella" ); //true cuz r>m
145 VERIFY( str_0
> "cost" );
146 VERIFY( !(str_0
> "costa ricans") );
147 VERIFY( !("costa marbella" > str_0
) );//false cuz m<r
148 VERIFY( !("cost" > str_0
) );
149 VERIFY( "costa ricans" > str_0
);
150 VERIFY( !("costa rica" > str_0
) );
151 VERIFY( !(str_0
> "costa rica") );
153 VERIFY( !(str_0
< "costa marbella") );//false cuz r>m
154 VERIFY( !(str_0
< "cost") );
155 VERIFY( str_0
< "costa ricans" );
156 VERIFY( "costa marbella" < str_0
);//true cuz m<r
157 VERIFY( "cost" < str_0
);
158 VERIFY( !("costa ricans" < str_0
) );
159 VERIFY( !("costa rica" < str_0
) );
160 VERIFY( !(str_0
< "costa rica") );
162 VERIFY( str_0
>= "costa marbella" );//true cuz r>m
163 VERIFY( str_0
>= "cost" );
164 VERIFY( !(str_0
>= "costa ricans") );
165 VERIFY( !("costa marbella" >= str_0
) );//false cuz m<r
166 VERIFY( !("cost" >= str_0
) );
167 VERIFY( "costa ricans" >= str_0
);
168 VERIFY( "costa rica" >= str_0
);
169 VERIFY( str_0
>= "costa rica" );
171 VERIFY( !(str_0
<= "costa marbella") );//false cuz r>m
172 VERIFY( !(str_0
<= "cost") );
173 VERIFY( str_0
<= "costa ricans" );
174 VERIFY( "costa marbella" <= str_0
);//true cuz m<r
175 VERIFY( "cost" <= str_0
);
176 VERIFY( !("costa ricans" <= str_0
) );
177 VERIFY( "costa rica" <= str_0
);
178 VERIFY( str_0
<= "costa rica" );
180 VERIFY( std::is_gt(str_0
<=> "costa marbella") );
181 VERIFY( std::is_gt(str_0
<=> "cost") );
182 VERIFY( std::is_lt(str_0
<=> "costa ricans") );
183 VERIFY( std::is_eq(str_0
<=> "costa rica") );
184 VERIFY( std::is_lt("costa marbella" <=> str_0
) );
185 VERIFY( std::is_lt("cost" <=> str_0
) );
186 VERIFY( std::is_gt("costa ricans" <=> str_0
) );
187 VERIFY( std::is_eq("costa rica" <=> str_0
) );