Merge branch '4.7' of scm.dev.nokia.troll.no:qt/qt-doc-team into 4.7

1 files changed, 108 insertions, 0 deletions

diff --git a/doc/src/snippets/code/doc_src_q3memarray.cpp b/doc/src/snippets/code/doc_src_q3memarray.cpp
new file mode 100644
index 0000000..2c91050
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+++ b/doc/src/snippets/code/doc_src_q3memarray.cpp
@@ -0,0 +1,108 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//! [0]
+#include <q3memarray.h>
+#include <stdio.h>
+
+Q3MemArray<int> fib( int num ) // returns fibonacci array
+{
+    Q_ASSERT( num > 2 );
+    Q3MemArray<int> f( num ); // array of ints
+
+    f[0] = f[1] = 1;
+    for ( int i = 2; i < num; i++ )
+	f[i] = f[i-1] + f[i-2];
+
+    return f;
+}
+
+int main()
+{
+    Q3MemArray<int> a = fib( 6 ); // get first 6 fibonaccis
+    for ( int i = 0; i < a.size(); i++ )
+	qDebug( "%d: %d", i, a[i] );
+
+    qDebug( "1 is found %d times", a.contains(1) );
+    qDebug( "5 is found at index %d", a.find(5) );
+
+    return 0;
+}
+//! [0]
+
+
+//! [2]
+// MyStruct may be padded to 4 or 8 bytes
+struct MyStruct
+{
+    short i; // 2 bytes
+    char c;  // 1 byte
+};
+
+Q3MemArray<MyStruct> a(1);
+a[0].i = 5;
+a[0].c = 't';
+
+MyStruct x;
+x.i = '5';
+x.c = 't';
+int i = a.find( x ); // may return -1 if the pad bytes differ
+//! [2]
+
+
+//! [3]
+static char bindata[] = { 231, 1, 44, ... };
+QByteArray	a;
+a.setRawData( bindata, sizeof(bindata) );	// a points to bindata
+QDataStream s( a, IO_ReadOnly );		// open on a's data
+s >> <something>;				// read raw bindata
+a.resetRawData( bindata, sizeof(bindata) ); // finished
+//! [3]
+
+
+//! [4]
+static char bindata[] = { 231, 1, 44, ... };
+QByteArray	a, b;
+a.setRawData( bindata, sizeof(bindata) );	// a points to bindata
+a.resize( 8 );				// will crash
+b = a;					// will crash
+a[2] = 123;					// might crash
+// forget to resetRawData: will crash
+//! [4]