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path: root/src/corelib/text/qbytearraylist.cpp
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 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  /**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Copyright (C) 2014 by Southwest Research Institute (R) ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtCore module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 3 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL3 included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 3 requirements ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 2.0 or (at your option) the GNU General ** Public license version 3 or any later version approved by the KDE Free ** Qt Foundation. The licenses are as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-2.0.html and ** https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include QT_BEGIN_NAMESPACE /*! \typedef QByteArrayListIterator \relates QByteArrayList The QByteArrayListIterator type definition provides a Java-style const iterator for QByteArrayList. QByteArrayList provides both \l{Java-style iterators} and \l{STL-style iterators}. The Java-style const iterator is simply a type definition for QListIterator. \sa QMutableByteArrayListIterator, QByteArrayList::const_iterator */ /*! \typedef QMutableByteArrayListIterator \relates QByteArrayList The QByteArrayListIterator type definition provides a Java-style non-const iterator for QByteArrayList. QByteArrayList provides both \l{Java-style iterators} and \l{STL-style iterators}. The Java-style non-const iterator is simply a type definition for QMutableListIterator. \sa QByteArrayListIterator, QByteArrayList::iterator */ /*! \class QByteArrayList \inmodule QtCore \since 5.4 \brief The QByteArrayList class provides a list of byte arrays. \ingroup tools \ingroup shared \ingroup string-processing \reentrant QByteArrayList is actually just a QList. It is documented as a full class just for simplicity of documenting the member methods that exist only in QList. All of QList's functionality also applies to QByteArrayList. For example, you can use isEmpty() to test whether the list is empty, and you can call functions like append(), prepend(), insert(), replace(), removeAll(), removeAt(), removeFirst(), removeLast(), and removeOne() to modify a QByteArrayList. In addition, QByteArrayList provides several join() methods for concatenating the list into a single QByteArray. The purpose of QByteArrayList is quite different from that of QStringList. Whereas QStringList has many methods for manipulation of elements within the list, QByteArrayList does not. Normally, QStringList should be used whenever working with a list of printable strings. QByteArrayList should be used to handle and efficiently join large blobs of binary data, as when sequentially receiving serialized data through a QIODevice. \sa QByteArray, QStringList */ /*! \fn QByteArray QByteArrayList::join(const QByteArray &separator) const Joins all the byte arrays into a single byte array with each element separated by the given \a separator. */ /*! \fn QByteArray QByteArrayList::join(QByteArrayView separator) const \since 6.3 Joins all the byte arrays into a single byte array with each element separated by the given \a separator, if any. */ /*! \fn QByteArray QByteArrayList::join(char separator) const Joins all the byte arrays into a single byte array with each element separated by the given \a separator. */ static qsizetype QByteArrayList_joinedSize(const QByteArrayList *that, qsizetype seplen) { qsizetype totalLength = 0; const qsizetype size = that->size(); for (qsizetype i = 0; i < size; ++i) totalLength += that->at(i).size(); if (size > 0) totalLength += seplen * (size - 1); return totalLength; } QByteArray QtPrivate::QByteArrayList_join(const QByteArrayList *that, const char *sep, qsizetype seplen) { QByteArray res; if (const qsizetype joinedSize = QByteArrayList_joinedSize(that, seplen)) res.reserve(joinedSize); // don't call reserve(0) - it allocates one byte for the NUL const qsizetype size = that->size(); for (qsizetype i = 0; i < size; ++i) { if (i) res.append(sep, seplen); res += that->at(i); } return res; } QT_END_NAMESPACE