blob: 64e0b6e450c23d79a9f93cc93b730532dd98972e (
plain)
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
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
//! [0]
QSet<QString> set;
//! [0]
//! [1]
set.insert("one");
set.insert("three");
set.insert("seven");
//! [1]
//! [2]
set << "twelve" << "fifteen" << "nineteen";
//! [2]
//! [3]
if (!set.contains("ninety-nine"))
...
//! [3]
//! [4]
QSetIterator<QWidget *> i(set);
while (i.hasNext()) {
QWidget *w = i.next();
qDebug() << w;
}
//! [4]
//! [5]
QSet<QWidget *>::const_iterator i = set.constBegin();
while (i != set.constEnd()) {
qDebug() << *i;
++i;
}
//! [5]
//! [6]
QSet<QString> set;
...
foreach (const QString &value, set)
qDebug() << value;
//! [6]
//! [7]
QSet<QString> set;
set.reserve(20000);
for (int i = 0; i < 20000; ++i)
set.insert(values[i]);
//! [7]
//! [8]
QSet<QString> set;
set << "January" << "February" << ... << "December";
QSet<QString>::iterator i;
for (i = set.begin(); i != set.end(); ++i)
qDebug() << *i;
//! [8]
//! [9]
QSet<QString> set;
set << "January" << "February" << ... << "December";
QSet<QString>::iterator i = set.begin();
while (i != set.end()) {
if ((*i).startsWith('J')) {
i = set.erase(i);
} else {
++i;
}
}
//! [9]
//! [10]
QSet<QString> set;
...
const auto predicate = [](const QString &s) { return s.compare("Jeanette", Qt::CaseInsensitive) == 0; };
QSet<QString>::iterator it = std::find_if(set.begin(), set.end(), predicate);
if (it != set.end())
cout << "Found Jeanette" << endl;
//! [10]
//! [11]
QSet<QString> set;
set << "January" << "February" << ... << "December";
QSet<QString>::const_iterator i;
for (i = set.begin(); i != set.end(); ++i)
qDebug() << *i;
//! [11]
//! [12]
QSet<QString> set;
...
const auto predicate = [](const QString &s) { return s.compare("Jeanette", Qt::CaseInsensitive) == 0; };
QSet<QString>::const_iterator it = std::find_if(set.cbegin(), set.cend(), predicate);
if (it != set.constEnd())
cout << "Found Jeanette" << endl;
//! [12]
//! [13]
QSet<QString> set;
set << "red" << "green" << "blue" << ... << "black";
QList<QString> list = set.toList();
std::sort(list.begin(), list.end());
//! [13]
//! [14]
QStringList list;
list << "Julia" << "Mike" << "Mike" << "Julia" << "Julia";
QSet<QString> set = QSet<QString>::fromList(list);
set.contains("Julia"); // returns true
set.contains("Mike"); // returns true
set.size(); // returns 2
//! [14]
|
