1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
// { dg-options "-Wno-deprecated" }
// Copyright (C) 2009 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// This is a copy of tr1/6_containers/unordered_map/erase/1.cc, using
// hash_map instead of unordered_map.
#include <hash_map>
#include <string>
#include <testsuite_hooks.h>
namespace __gnu_cxx
{
using std::string;
inline size_t hash_string(const char* s)
{
unsigned long h;
for (h=0; *s; ++s) {
h = 5*h + *s;
}
return size_t(h);
}
template<class T> struct hash<T *>
{
size_t operator()(const T *const & s) const
{ return reinterpret_cast<size_t>(s); }
};
template<> struct hash<string>
{
size_t operator()(const string &s) const { return hash_string(s.c_str()); }
};
template<> struct hash<const string>
{
size_t operator()(const string &s) const { return hash_string(s.c_str()); }
};
}
void test01()
{
bool test __attribute__((unused)) = true;
typedef __gnu_cxx::hash_map<std::string, int> Map;
typedef Map::iterator iterator;
typedef Map::const_iterator const_iterator;
typedef Map::value_type value_type;
Map m1;
m1.insert(value_type("because to why", 1));
m1.insert(value_type("the stockholm syndrome", 2));
m1.insert(value_type("a cereous night", 3));
m1.insert(value_type("eeilo", 4));
m1.insert(value_type("protean", 5));
m1.insert(value_type("the way you are when", 6));
m1.insert(value_type("tillsammans", 7));
m1.insert(value_type("umbra/penumbra", 8));
m1.insert(value_type("belonging (no longer mix)", 9));
m1.insert(value_type("one line behind", 10));
VERIFY( m1.size() == 10 );
VERIFY( m1.erase("eeilo") == 1 );
VERIFY( m1.size() == 9 );
iterator it1 = m1.find("eeilo");
VERIFY( it1 == m1.end() );
VERIFY( m1.erase("tillsammans") == 1 );
VERIFY( m1.size() == 8 );
iterator it2 = m1.find("tillsammans");
VERIFY( it2 == m1.end() );
// Must work (see DR 526)
iterator it3 = m1.find("belonging (no longer mix)");
VERIFY( it3 != m1.end() );
VERIFY( m1.erase(it3->first) == 1 );
VERIFY( m1.size() == 7 );
it3 = m1.find("belonging (no longer mix)");
VERIFY( it3 == m1.end() );
VERIFY( !m1.erase("abra") );
VERIFY( m1.size() == 7 );
VERIFY( !m1.erase("eeilo") );
VERIFY( m1.size() == 7 );
VERIFY( m1.erase("because to why") == 1 );
VERIFY( m1.size() == 6 );
iterator it4 = m1.find("because to why");
VERIFY( it4 == m1.end() );
iterator it5 = m1.find("umbra/penumbra");
iterator it6 = m1.find("one line behind");
VERIFY( it5 != m1.end() );
VERIFY( it6 != m1.end() );
VERIFY( m1.find("the stockholm syndrome") != m1.end() );
VERIFY( m1.find("a cereous night") != m1.end() );
VERIFY( m1.find("the way you are when") != m1.end() );
VERIFY( m1.find("a cereous night") != m1.end() );
VERIFY( m1.erase(it5->first) == 1 );
VERIFY( m1.size() == 5 );
it5 = m1.find("umbra/penumbra");
VERIFY( it5 == m1.end() );
VERIFY( m1.erase(it6->first) == 1 );
VERIFY( m1.size() == 4 );
it6 = m1.find("one line behind");
VERIFY( it6 == m1.end() );
iterator it7 = m1.begin();
iterator it8 = it7;
++it8;
iterator it9 = it8;
++it9;
VERIFY( m1.erase(it8->first) == 1 );
VERIFY( m1.size() == 3 );
VERIFY( ++it7 == it9 );
iterator it10 = it9;
++it10;
iterator it11 = it10;
VERIFY( m1.erase(it9->first) == 1 );
VERIFY( m1.size() == 2 );
VERIFY( ++it10 == m1.end() );
m1.erase(m1.begin());
VERIFY( m1.size() == 1 );
VERIFY( m1.begin() == it11 );
VERIFY( m1.erase(m1.begin()->first) == 1 );
VERIFY( m1.size() == 0 );
VERIFY( m1.begin() == m1.end() );
}
int main()
{
test01();
return 0;
}
|
