QtConcurrent-BlockingMapped-Member-Function-of-iterated-objects

From Qt Wiki
Revision as of 21:49, 7 April 2016 by Simow (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

This demonstrates how to call a member function on each item in the container and get a collection of the return values.

#include <QtConcurrentMap>
#include <QVector>
#include <iostream>

class MyClass
{
public:
  float Test() const { // Note, this function MUST be const!
   return 1.0f;
  }
};

int main() {
 QVector<MyClass> v;
 MyClass a;
 v.push_back(a);
 QVector<float> result = QtConcurrent::blockingMapped<QVector<float> >(v.begin(), v.end(), &MyClass::Test);
 return 0;
}