Difference between revisions of "QtConcurrent-BlockingMapped-Other-Object-Member-Function-Operator"

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Demonstrates how to pass each object in the container to a member function of different class instance. You can alternatively do this using [http://developer.qt.nokia.com/wiki/QtConcurrent-BlockingMapped-Other-Object-Member-Function-Bind boost::bind] ''[developer.qt.nokia.com]''
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[[Category:HowTo]]
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This Demonstrates how to pass each object in the container to a member function of different class instance. You can alternatively do this using [[QtConcurrent-BlockingMapped-Other-Object-Member-Function-Bind | boost::bind]]
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<code>
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#include <QtConcurrentMap>
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#include <QVector>
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#include <boost/bind.hpp>
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#include <iostream>
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class Object{};
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class MyClass
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{
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public:
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float operator()(const Object& object) { return 1.0f; }
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typedef float result_type;
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};
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int main()
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{
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QVector<Object> v;
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Object a;
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v.push_back(a);
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MyClass myClass;
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QVector<float> result = QtConcurrent::blockingMapped<QVector<float> >(v.begin(), v.end(), myClass);
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std::cout << result[0] << std::endl;
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return 0;
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}
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</code>

Latest revision as of 21:50, 7 April 2016

This Demonstrates how to pass each object in the container to a member function of different class instance. You can alternatively do this using boost::bind

  1. include <QtConcurrentMap>
  2. include <QVector>
  3. include <boost/bind.hpp>
  4. include <iostream>

class Object{};

class MyClass { public:

float operator()(const Object& object) { return 1.0f; }
typedef float result_type;

};

int main() {

QVector<Object> v;
Object a;
v.push_back(a);
MyClass myClass;
QVector<float> result = QtConcurrent::blockingMapped<QVector<float> >(v.begin(), v.end(), myClass);
std::cout << result[0] << std::endl;
return 0;

}