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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the documentation of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 //! [0] |
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43 foreach (variable, container) |
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44 statement; |
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45 //! [0] |
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46 |
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47 |
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48 //! [1] |
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49 QList<QString> list; |
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50 ... |
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51 foreach (QString str, list) |
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52 cout << str.ascii() << endl; |
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53 //! [1] |
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54 |
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55 |
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56 //! [2] |
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57 QString str; |
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58 foreach (str, list) |
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59 cout << str.ascii() << endl; |
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60 //! [2] |
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61 |
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62 |
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63 //! [3] |
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64 // forward // backward |
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65 QList<QString> list; QList<QString> list; |
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66 ... ... |
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67 QListIterator<QString> i(list); QListIterator<QString> i(list); |
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68 while (i.hasNext()) i.toBack(); |
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69 cout << i.next().ascii() << endl; while (i.hasPrev()) |
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70 cout << i.prev().ascii() << endl; |
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71 //! [3] |
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72 |
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73 |
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74 //! [4] |
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75 // forward // backward |
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76 QMutableListIterator<int> i(list); QMutableListIterator<int> i(list); |
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77 while (i.hasNext()) i.toBack(); |
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78 if (i.next() > 128) while (i.hasPrev()) |
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79 i.setValue(128); if (i.prev() > 128) |
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80 i.setValue(128); |
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81 //! [4] |
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82 |
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83 |
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84 //! [5] |
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85 // forward // backward |
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86 QMutableListIterator<int> i(list); QMutableListIterator<int> i(list); |
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87 while (i.hasNext()) i.toBack(); |
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88 if (i.next() % 2 != 0) while (i.hasPrev()) |
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89 i.remove(); if (i.prev() % 2 != 0) |
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90 i.remove(); |
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91 //! [5] |
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92 |
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93 |
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94 //! [6] |
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95 // STL-style // Java-style |
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96 QMap<int, QWidget *>::const_iterator i; QMapIterator<int, QWidget *> i(map); |
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97 for (i = map.begin(); i != map.end(); ++i) while (i.findNext(widget)) |
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98 if (i.value() == widget) cout << "Found widget " << widget |
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99 cout << "Found widget " << widget << " under key " |
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100 << " under key " << i.key() << endl; |
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101 << i.key() << endl; |
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102 //! [6] |
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103 |
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104 |
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105 //! [7] |
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106 // STL-style // Java-style |
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107 QList<int>::iterator i = list.begin(); QMutableListIterator<int> i(list); |
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108 while (i != list.end()) { while (i.hasNext()) { |
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109 if (*i == 0) { int val = i.next(); |
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110 i = list.erase(i); if (val < 0) |
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111 } else { i.setValue(-val); |
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112 if (*i < 0) else if (val == 0) |
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113 *i = -*i; i.remove(); |
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114 ++i; } |
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115 } |
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116 } |
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117 //! [7] |
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118 |
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119 |
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120 //! [8] |
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121 QList<double> list; |
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122 ... |
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123 for (int i = 0; i < list.size(); ++i) { |
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124 if (list[i] < 0.0) |
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125 list[i] = 0.0; |
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126 } |
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127 //! [8] |
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128 |
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129 |
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130 //! [9] |
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131 QMap<QString, int> map; |
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132 ... |
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133 map.value("TIMEOUT", 30); // returns 30 if "TIMEOUT" isn't in the map |
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134 //! [9] |
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135 |
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136 |
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137 //! [10] |
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138 QMultiMap<QString, int> map; |
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139 ... |
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140 QList<int> values = map.values("TIMEOUT"); |
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141 //! [10] |