C++/Qt/QStack
Содержание
Create int QStack
#include <QtGui>
#include <iostream>
using namespace std;
int main(int argc, char *argv[])
{
QStack<int> stack;
stack.push(1);
stack.push(2);
stack.push(3);
while (!stack.isEmpty())
cout << stack.pop() << endl;
}
is QStack empty
#include <QtGui>
#include <iostream>
using namespace std;
int main(int argc, char *argv[])
{
QStack<int> stack;
stack.push(1);
stack.push(2);
stack.push(3);
while (!stack.isEmpty())
cout << stack.pop() << endl;
}
Push to QStack
#include <QStack>
#include <QDebug>
int main()
{
QStack<int> stack;
stack.push(1);
stack.push(2);
stack.push(3);
while (!stack.isEmpty())
qDebug() << stack.pop(); // output: 3, 2, 1
return 0;
}
Push value to QStack, and pop out
#include <QtGui>
#include <iostream>
using namespace std;
int main(int argc, char *argv[])
{
QStack<int> stack;
stack.push(1);
stack.push(2);
stack.push(3);
while (!stack.isEmpty())
cout << stack.pop() << endl;
}
QStack of QString
Chapter01\stringlist-stack-queue\special-lists.cpp
/*
* Copyright (c) 2006-2007, Johan Thelin
*
* All rights reserved.
*
* 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 APress 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.
*
*/
#include <QStringList>
#include <QStack>
#include <QQueue>
#include <QtDebug>
void stringList()
{
QString text;
QStringList list;
list << "foo" << "bar" << "baz";
foreach( text, list )
qDebug() << text;
qDebug() << "---";
QString all = list.join(",");
qDebug() << all;
qDebug() << "---";
list.replaceInStrings( "a", "oo" );
foreach( text, list )
qDebug() << text;
qDebug() << "---";
list << all.split(",");
foreach( text, list )
qDebug() << text;
}
void stackDemo()
{
QStack<QString> stack;
stack.push( "foo" );
stack.push( "bar" );
stack.push( "baz" );
QString result;
while( !stack.isEmpty() )
result += stack.pop();
qDebug() << result;
}
void queueDemo()
{
QQueue<QString> queue;
queue.enqueue( "foo" );
queue.enqueue( "bar" );
queue.enqueue( "baz" );
QString result;
while( !queue.isEmpty() )
result += queue.dequeue();
qDebug() << result;
}
int main( void )
{
qDebug() << "String list";
stringList();
qDebug() << "Stack";
stackDemo();
qDebug() << "Queue";
queueDemo();
return 0;
}