awesome-attractor/Vector.cpp

#include <iostream>
using namespace std;

#include "Vector.hpp"

Vector::Vector():
        dimension(0) {

    coordinates = new (nothrow) float[0];

    assert(coordinates != NULL);

#ifdef HARDDEBUG
    cout << "New vector (without elements)" << endl;
#endif
}

Vector::Vector(unsigned int d):
        dimension(d) {

    coordinates = new (nothrow) float[dimension];

    assert(coordinates != NULL);

#ifdef HARDDEBUG
    cout << "New vector:" << endl << *this << endl;
#endif
}

Vector::Vector(unsigned int d, float default_val):
        dimension(d) {

    coordinates = new (nothrow) float[dimension];

    assert(coordinates != NULL);

    for (unsigned int i = 0; i < dimension; i++) {
        coordinates[i] = default_val;
    }

#ifdef HARDDEBUG
    cout << "New vector with default values:" << endl << *this << endl;
#endif
}


Vector::~Vector() {
    delete[] coordinates;

#ifdef HARDDEBUG
    cout << "coordinates deleted" << endl;
#endif
}


Vector& Vector::operator=(const Vector& a) {
    if ( dimension != a.dimension ) {
        dimension = a.dimension;
        delete[] coordinates;
        coordinates = new float[dimension];

#ifdef HARDDEBUG
        cout << "Dimensions were not equal, made new vector" << endl;
#endif
    }

    for ( unsigned int i = 0; i < dimension; i++ ) {
        coordinates[i] = a.coordinates[i];
    }

#ifdef HARDDEBUG
    cout << "operator= result" << endl << *this << endl;
#endif

    return *this;
}


ostream& operator<<(ostream& os, const Vector& a) {
    os << a.dimension << endl;
    for ( unsigned int i = 0; i < a.dimension; i++ ) {
        os << a.coordinates[i] << " ";
    }

    os << endl;
    return os;
}


float& Vector::operator[](const unsigned int index) {
    assert(index < dimension);
    return coordinates[index];
}

// matig werkende optelling en scalaire vermenigvuldiging van vectoren
/*
Vector Vector::operator+(const Vector a) const {
    if ( dimension != a.dimension ) {
        cout << "WARNING: dimensions not equal in vector addition" << endl;
        exit(1);
    } else {
        static Vector ret(dimension);
        for ( unsigned int i = 0; i < dimension; i++ ) {
            ret.coordinates[i] = coordinates[i] + a.coordinates[i];
        }

#ifdef HARDDEBUG
        cout << "operator+ result" << endl << ret << endl;
#endif
        return ret;
    }
}


Vector Vector::operator*(const float a) const {
    static Vector ret(dimension);
    for ( unsigned int i = 0; i < dimension; i++ ) {
        ret.coordinates[i] = coordinates[i] * a;
    }

#ifdef HARDDEBUG
    cout << "operator* result" << endl << ret << endl;
#endif
    return ret;
}
*/