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

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Line 16: Line 16:
 
{
 
{
 
public:
 
public:
  float Test(const Object& object) const { return 1.0f;} // Note, this function MUST be const!
+
  float Test(const Object& object) const { return 1.0f;} // Note, this function MUST be const!
 
};
 
};
  
 
int main()
 
int main()
 
{
 
{
  QVector<Object> v;
+
  QVector<Object> v;
 
  Object a;
 
  Object a;
 
  v.push_back(a);
 
  v.push_back(a);
Line 27: Line 27:
 
MyClass myClass;
 
MyClass myClass;
  
QVector<float> result = QtConcurrent::blockingMapped<QVector<float> >(v.begin(), v.end(), boost::bind(&amp;MyClass::Test, &amp;myClass, _1));
+
QVector<float> result = QtConcurrent::blockingMapped<QVector<float> >(v.begin(), v.end(), boost::bind(&MyClass::Test, &myClass, _1));
  
 
std::cout << result[0] << std::endl;
 
std::cout << result[0] << std::endl;
 
  return 0;
 
  return 0;
 
}
 
}

Revision as of 17:44, 12 March 2015

Demonstrates how to pass each object in the container to a member function of different class instance using boost::bind. You can alternatively do this by overloading operator()
  1. include <QtConcurrentMap>
  2. include <QVector>
  1. include <boost/bind.hpp>
  1. include <iostream>
class Object{}; class MyClass { public: float Test(const Object& object) const { return 1.0f;} // Note, this function MUST be const! }; int main() { QVector<Object> v; Object a; v.push_back(a); MyClass myClass; QVector<float> result = QtConcurrent::blockingMapped<QVector<float> >(v.begin(), v.end(), boost::bind(&MyClass::Test, &myClass, _1)); std::cout << result[0] << std::endl; return 0; }