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#include <QCoreApplication>

#include <QDebug>
#include "functor1.h"
#include "generatorofbits.h"

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    functor1 functor;
    qDebug()<<functor(1);
    GeneratorOfBits gen1;
    qDebug()<<gen1(1);
    return a.exec();
}

#ifndef FUNCTOR1_H
#define FUNCTOR1_H

class functor1
{
public:
    bool            operator ()(int i);
};

#endif // FUNCTOR1_H

#include "functor1.h"

bool functor1::operator ()(int i)
{
    if(i==1)
    {
        return true;
    }
    return false;
}

#ifndef GENERATOROFBITS_H
#define GENERATOROFBITS_H

class GeneratorOfBits
{
public:
    int             operator ()( int lengthOfKeyCurrent );
};

#endif // GENERATOROFBITS_H

#include "generatorofbits.h"

int GeneratorOfBits::operator ()(int lengthOfKeyCurrent )
{
    return 1;
}