getting this error

[lolo10]

// Test program for CarbonFootprint and implementing classes.
#include <iostream>
#include <vector>
#include <string>
using namespace std;

class CarbonFootprint

{

public:

virtual void getCarbonFootprint() = 0; //pure virtual function

virtual ~CarbonFootprint()

{

cout << "\nCarbon Footprint class destroyed!" << endl;

}

};
class Car : public CarbonFootprint

{

private:

double CO2_kg_perYear;

double avg_miles_driven_annually;

double avg_miles_per_gallon;

char fuel_type;

string car;

public:

Car(double mpg) : avg_miles_per_gallon(mpg) //one-arg constructor

{
cout << "\nCar Carbon Footprint." << endl;
cout << "\n Enter the average amount of miles you drive per year: ";

cin >> avg_miles_driven_annually;

cout << " Select type of fuel for the "<< car <<": ('d' for diesel, 'u' for unleaded): ";

cin >> fuel_type;

}

void getCarbonFootprint()

{

double DIESEL_FUEL_FACTOR = 10.15;

double UNLEADED_FUEL_FACTOR = 8.91;

double gallons_used_perYear = (avg_miles_driven_annually/avg_miles_per_gallon);


bool isValid = false;

while(isValid == false){

if (fuel_type == 'd'){

CO2_kg_perYear = gallons_used_perYear * DIESEL_FUEL_FACTOR;

cout << "\n The "<< car <<"'s annual CO2 emission is: " <<

CO2_kg_perYear<<" kilograms per year" <<endl;

isValid = true;

}

else if(fuel_type == 'u'){

CO2_kg_perYear = gallons_used_perYear * UNLEADED_FUEL_FACTOR;

cout << "\n The annual CO2 emission for your car is: " <<

CO2_kg_perYear<<" kilograms per year" <<endl;

isValid = true;

}

}

}

~Car()

{

cout << "\nCar class destroyed!" << endl;

}

};
class Building : public CarbonFootprint

{

private:

double Total_CO2_kg_perYear;

double CO2_from_gas_per_year;

int kilowattHours_per_year;

double DTH_per_year;

public:

Building(int hr) : kilowattHours_per_year(hr)//constructor (two args)

{

cout << "\nBuilding carbon footprint."<< endl;

cout << " For residential gas service, enter average DTH billed per year: ";

cin >> DTH_per_year;

}

void getCarbonFootprint()

{

double thermConversionFactor = 12.98;

CO2_from_gas_per_year = ((DTH_per_year * 10)* thermConversionFactor);

Total_CO2_kg_perYear = kilowattHours_per_year + CO2_from_gas_per_year;



cout << "\n CO2 footprint in kilograms from electricity: " << kilowattHours_per_year;

cout << "\n CO2 footprint in kilograms from residential gas: " << CO2_from_gas_per_year;

cout << "\n Total CO2 footprint for the building is: " << Total_CO2_kg_perYear << endl;

}

~Building() //virtual destructor

{

cout << "\nBuilding class destroyed!" << endl;

}

};
class Bicycle : public CarbonFootprint
{

private:

int weight, minutesRidePerDay;

char speed, foodPractice;

double extraCaloriesConsumed;

double totalFoodCO2PerYear;

bool is_SpeedValid;

bool Ok;
public:


Bicycle()

{

cout << "\nBicycling carbon footprint."<< endl;

cout <<" Enter your weight: ";cin >>weight;

cout <<" Enter how many minutes do you ride daily: ";cin >> minutesRidePerDay;

cout <<" How fast do you ride?"<< endl;

cout <<" For light speed (10-12 mph) enter 'l'" << endl;

cout <<" For moderate speed (12-14 mph) enter 'm'" << endl;

cout <<" For vigorous speed (14-16 mph) enter 'v'" << endl;

cin >> speed;



bool is_SpeedValid = false;

while (is_SpeedValid == false)

{

if ((speed == 'l') || (speed == 'm') || (speed == 'v'))

{

is_SpeedValid = true;

}

}

cout <<"\n What is your food practice?"<< endl;

cout <<" For vegetarian, enter 'v'" << endl;

cout <<" For heavy meat eater, enter 'c'" << endl;

cout <<" For average, enter 'a'" << endl;

cin >> foodPractice;


bool Ok = false;

while (Ok == false)

{

if (foodPractice == 'v' ||foodPractice == 'c'||foodPractice == 'a' ){

Ok = true;

}

}

}

void getCarbonFootprint()

{

const double L_speedfactor = .0453;

const double M_speedfactor = .0606;

const double V_speedfactor = .0753;

const double VegetarianCONVERSION_FACTOR = .9066;

const double AvgCONVERSION_FACTOR = 1.11776;

const double carnivoreCONVERSION_FACTOR = 1.285;

if ( speed == 'l')

{

extraCaloriesConsumed = weight * minutesRidePerDay * L_speedfactor;

}

else if(speed == 'm')

{

extraCaloriesConsumed = weight * minutesRidePerDay * M_speedfactor;

}

else if(speed == 'v')

{

extraCaloriesConsumed = weight * minutesRidePerDay * V_speedfactor;

}


if (foodPractice == 'v' || foodPractice == 'V') //for vegetarians

{

totalFoodCO2PerYear = extraCaloriesConsumed * VegetarianCONVERSION_FACTOR;

cout << "\n The total CO2 emission for extra food annually is: " <<

totalFoodCO2PerYear<<" kilograms per year" <<endl;

}

else if(foodPractice == 'c' || foodPractice == 'C')

{

totalFoodCO2PerYear = extraCaloriesConsumed * carnivoreCONVERSION_FACTOR;

cout << "\n The total CO2 emission for extra food annually is: " <<

totalFoodCO2PerYear<<" kilograms per year" <<endl;

}

else if(foodPractice == 'a' || foodPractice == 'A')

{

totalFoodCO2PerYear = extraCaloriesConsumed * AvgCONVERSION_FACTOR;

cout << "\n The total CO2 emission for extra food annually is: " <<

totalFoodCO2PerYear<<" kilograms per year" <<endl;
}

~Bicycle()
{
cout << "\nBicycle class destroyed!" << endl;

}

}
};

int main()
{
vector< CarbonFootprint* > list;

// add elements to list
list.push_back( new Bicycle() );
list.push_back( new Building( 2500 ) );
list.push_back( new Car( 10 ) );

// display carbon footprint of each object
for ( size_t i = 0; i < list.size(); ++i ){

list[i]->getCarbonFootprint();

}

// release elements of list
for ( size_t i = 0; i < list.size(); ++i ){

delete list[i];
}
return 0;

// end main
}

~Bicycle()
{
cout << "\nBicycle class destroyed!" << endl;

}
it tells me this one is wrong and ~ not operator
and i destroyed two up, why this one wrong

[CodeGoggles]

Please use code block formatting <> its the button to the right of the text entry box as it makes code much easier to read.

[CodeGoggles]

Your destructor is in the getcarbonfootprint() function. Is that allowed?
I don't think it is.

[lolo10]

ok. Great thx.