QtConcurrent-BlockingMapped-Member-Function-of-iterated-objects: Difference between revisions
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This demonstrates how to call a member function on each item in the container and get a collection of the return values.<br /> | This demonstrates how to call a member function on each item in the container and get a collection of the return values.<br /><code><br />#include <QtConcurrentMap&gt;<br />#include <QVector&gt; | ||
#include <iostream&gt; | |||
class MyClass<br />{<br />public:<br /> float Test() const // Note, this function MUST be const!<br /> {<br /> return 1.0f;<br /> }<br />}; | |||
int main()<br />{<br /> QVector&lt;MyClass&gt; v;<br /> MyClass a;<br /> v.push_back(a); | |||
QVector&lt;float&gt; result = QtConcurrent::blockingMapped&lt;QVector&lt;float&gt; >(v.begin(), v.end(), &MyClass::Test); | |||
return 0;<br />} | |||
Revision as of 11:11, 24 February 2015
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;
}