Question

I know this has been asked many times, but I can not understand this problem. This my header file:

#ifndef TASK_H
#define TASK_H

#include "storage_adaptors.hpp"
#include <boost/numeric/ublas/vector.hpp>

class Task {
private:
    boost::numeric::ublas::vector<double> taskPosistionConstraint;
    boost::numeric::ublas::vector<double> initialPosition;
    boost::numeric::ublas::vector<double> finalPosition;
    double pathLength;
    int taskType;

public:
    Task();
    Task(double* _initialPoint, double* _finalPoint, int type);
    double getLength();
    int getTaskType();

    ~Task();
};

#endif  /* TASK_H */

and this is the cpp file:

#include "Task.h"


const int TASK_SIZE = 3;

Task::Task() {
}

Task::~Task() {
}

Task::Task(double* _initialPoint, double* _finalPoint, int type) {

    finalPosition = make_vector_from_pointer(TASK_SIZE,_finalPoint);
    initialPosition = make_vector_from_pointer(TASK_SIZE, _initialPoint);

}

The error occurs at make_vector_from_pointer function that is defined in the storage_adaptors.hpp which is included in the Task.h which is a boost hpp file.
If the header is added to the class header file, why I’m having out of scope error:

Task.cpp:21: error: `make_vector_from_pointer’ was not declared in
this scope

Answer 1

If it’s a boost function, shouldn’t it be boost::make_vector_from_pointer' ? Or whatever namespace it’s in if not directly in the boost namespace.