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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 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 QtCore module 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 #ifndef QPAIR_H |
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43 #define QPAIR_H |
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44 |
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45 #include <QtCore/qdatastream.h> |
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46 |
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47 QT_BEGIN_HEADER |
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48 |
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49 QT_BEGIN_NAMESPACE |
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50 |
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51 QT_MODULE(Core) |
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52 |
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53 template <class T1, class T2> |
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54 struct QPair |
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55 { |
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56 typedef T1 first_type; |
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57 typedef T2 second_type; |
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58 |
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59 QPair() : first(T1()), second(T2()) {} |
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60 QPair(const T1 &t1, const T2 &t2) : first(t1), second(t2) {} |
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61 |
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62 QPair<T1, T2> &operator=(const QPair<T1, T2> &other) |
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63 { first = other.first; second = other.second; return *this; } |
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64 |
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65 T1 first; |
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66 T2 second; |
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67 }; |
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68 |
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69 template <class T1, class T2> |
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70 Q_INLINE_TEMPLATE bool operator==(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2) |
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71 { return p1.first == p2.first && p1.second == p2.second; } |
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72 |
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73 template <class T1, class T2> |
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74 Q_INLINE_TEMPLATE bool operator!=(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2) |
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75 { return !(p1 == p2); } |
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76 |
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77 template <class T1, class T2> |
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78 Q_INLINE_TEMPLATE bool operator<(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2) |
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79 { |
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80 return p1.first < p2.first || (!(p2.first < p1.first) && p1.second < p2.second); |
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81 } |
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82 |
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83 template <class T1, class T2> |
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84 Q_INLINE_TEMPLATE bool operator>(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2) |
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85 { |
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86 return p2 < p1; |
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87 } |
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88 |
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89 template <class T1, class T2> |
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90 Q_INLINE_TEMPLATE bool operator<=(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2) |
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91 { |
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92 return !(p2 < p1); |
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93 } |
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94 |
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95 template <class T1, class T2> |
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96 Q_INLINE_TEMPLATE bool operator>=(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2) |
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97 { |
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98 return !(p1 < p2); |
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99 } |
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100 |
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101 template <class T1, class T2> |
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102 Q_OUTOFLINE_TEMPLATE QPair<T1, T2> qMakePair(const T1 &x, const T2 &y) |
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103 { |
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104 return QPair<T1, T2>(x, y); |
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105 } |
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106 |
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107 #ifndef QT_NO_DATASTREAM |
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108 template <class T1, class T2> |
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109 inline QDataStream& operator>>(QDataStream& s, QPair<T1, T2>& p) |
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110 { |
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111 s >> p.first >> p.second; |
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112 return s; |
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113 } |
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114 |
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115 template <class T1, class T2> |
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116 inline QDataStream& operator<<(QDataStream& s, const QPair<T1, T2>& p) |
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117 { |
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118 s << p.first << p.second; |
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119 return s; |
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120 } |
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121 #endif |
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122 |
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123 QT_END_NAMESPACE |
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124 |
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125 QT_END_HEADER |
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126 |
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127 #endif // QPAIR_H |