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9767a048 ILT |
1 | // { dg-options "-Wno-deprecated" } |
2 | ||
a945c346 | 3 | // Copyright (C) 2009-2024 Free Software Foundation, Inc. |
9767a048 ILT |
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 | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
9767a048 ILT |
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 | |
748086b7 JJ |
17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
9767a048 ILT |
19 | |
20 | // This is a copy of tr1/6_containers/unordered_map/erase/1.cc, using | |
21 | // hash_map instead of unordered_map. | |
22 | ||
23 | #include <hash_map> | |
24 | #include <string> | |
25 | #include <testsuite_hooks.h> | |
26 | ||
27 | namespace __gnu_cxx | |
28 | { | |
29 | using std::string; | |
30 | ||
31 | inline size_t hash_string(const char* s) | |
32 | { | |
33 | unsigned long h; | |
34 | for (h=0; *s; ++s) { | |
35 | h = 5*h + *s; | |
36 | } | |
37 | return size_t(h); | |
38 | } | |
39 | ||
40 | template<class T> struct hash<T *> | |
41 | { | |
42 | size_t operator()(const T *const & s) const | |
43 | { return reinterpret_cast<size_t>(s); } | |
44 | }; | |
45 | ||
46 | template<> struct hash<string> | |
47 | { | |
48 | size_t operator()(const string &s) const { return hash_string(s.c_str()); } | |
49 | }; | |
50 | ||
51 | template<> struct hash<const string> | |
52 | { | |
53 | size_t operator()(const string &s) const { return hash_string(s.c_str()); } | |
54 | }; | |
55 | } | |
56 | ||
57 | void test01() | |
58 | { | |
9767a048 ILT |
59 | typedef __gnu_cxx::hash_map<std::string, int> Map; |
60 | typedef Map::iterator iterator; | |
61 | typedef Map::const_iterator const_iterator; | |
62 | typedef Map::value_type value_type; | |
63 | ||
64 | Map m1; | |
65 | ||
66 | m1.insert(value_type("because to why", 1)); | |
67 | m1.insert(value_type("the stockholm syndrome", 2)); | |
68 | m1.insert(value_type("a cereous night", 3)); | |
69 | m1.insert(value_type("eeilo", 4)); | |
70 | m1.insert(value_type("protean", 5)); | |
71 | m1.insert(value_type("the way you are when", 6)); | |
72 | m1.insert(value_type("tillsammans", 7)); | |
73 | m1.insert(value_type("umbra/penumbra", 8)); | |
74 | m1.insert(value_type("belonging (no longer mix)", 9)); | |
75 | m1.insert(value_type("one line behind", 10)); | |
76 | VERIFY( m1.size() == 10 ); | |
77 | ||
78 | VERIFY( m1.erase("eeilo") == 1 ); | |
79 | VERIFY( m1.size() == 9 ); | |
80 | iterator it1 = m1.find("eeilo"); | |
81 | VERIFY( it1 == m1.end() ); | |
82 | ||
83 | VERIFY( m1.erase("tillsammans") == 1 ); | |
84 | VERIFY( m1.size() == 8 ); | |
85 | iterator it2 = m1.find("tillsammans"); | |
86 | VERIFY( it2 == m1.end() ); | |
87 | ||
88 | // Must work (see DR 526) | |
89 | iterator it3 = m1.find("belonging (no longer mix)"); | |
90 | VERIFY( it3 != m1.end() ); | |
91 | VERIFY( m1.erase(it3->first) == 1 ); | |
92 | VERIFY( m1.size() == 7 ); | |
93 | it3 = m1.find("belonging (no longer mix)"); | |
94 | VERIFY( it3 == m1.end() ); | |
95 | ||
96 | VERIFY( !m1.erase("abra") ); | |
97 | VERIFY( m1.size() == 7 ); | |
98 | ||
99 | VERIFY( !m1.erase("eeilo") ); | |
100 | VERIFY( m1.size() == 7 ); | |
101 | ||
102 | VERIFY( m1.erase("because to why") == 1 ); | |
103 | VERIFY( m1.size() == 6 ); | |
104 | iterator it4 = m1.find("because to why"); | |
105 | VERIFY( it4 == m1.end() ); | |
106 | ||
107 | iterator it5 = m1.find("umbra/penumbra"); | |
108 | iterator it6 = m1.find("one line behind"); | |
109 | VERIFY( it5 != m1.end() ); | |
110 | VERIFY( it6 != m1.end() ); | |
111 | ||
112 | VERIFY( m1.find("the stockholm syndrome") != m1.end() ); | |
113 | VERIFY( m1.find("a cereous night") != m1.end() ); | |
114 | VERIFY( m1.find("the way you are when") != m1.end() ); | |
115 | VERIFY( m1.find("a cereous night") != m1.end() ); | |
116 | ||
117 | VERIFY( m1.erase(it5->first) == 1 ); | |
118 | VERIFY( m1.size() == 5 ); | |
119 | it5 = m1.find("umbra/penumbra"); | |
120 | VERIFY( it5 == m1.end() ); | |
121 | ||
122 | VERIFY( m1.erase(it6->first) == 1 ); | |
123 | VERIFY( m1.size() == 4 ); | |
124 | it6 = m1.find("one line behind"); | |
125 | VERIFY( it6 == m1.end() ); | |
126 | ||
127 | iterator it7 = m1.begin(); | |
128 | iterator it8 = it7; | |
129 | ++it8; | |
130 | iterator it9 = it8; | |
131 | ++it9; | |
132 | ||
133 | VERIFY( m1.erase(it8->first) == 1 ); | |
134 | VERIFY( m1.size() == 3 ); | |
135 | VERIFY( ++it7 == it9 ); | |
136 | ||
137 | iterator it10 = it9; | |
138 | ++it10; | |
139 | iterator it11 = it10; | |
140 | ||
141 | VERIFY( m1.erase(it9->first) == 1 ); | |
142 | VERIFY( m1.size() == 2 ); | |
143 | VERIFY( ++it10 == m1.end() ); | |
144 | ||
145 | m1.erase(m1.begin()); | |
146 | VERIFY( m1.size() == 1 ); | |
147 | VERIFY( m1.begin() == it11 ); | |
148 | ||
149 | VERIFY( m1.erase(m1.begin()->first) == 1 ); | |
150 | VERIFY( m1.size() == 0 ); | |
151 | VERIFY( m1.begin() == m1.end() ); | |
152 | } | |
153 | ||
154 | int main() | |
155 | { | |
156 | test01(); | |
157 | return 0; | |
158 | } |