unable to correct this program

[masiht]

I trying to make this program .I tried several techniques to fix it but nothing worked for me .Can anyone please tell me what is the problem with this program.


#include<iostream>
using namespace std;
double MilesperGal(double F,double m)
{
double M;



M = m/F;
return M;


}
double mileage(double F,double M)
{
double m;

m=F*M;


return m;

}
double fuelUsed (double M,double MPG)
{
double f;


f=M/MPG;


return f;


}
int main()
{
double FuelUsed;
double Mileage;
double MilesPerGal;

char x ;

cout<<"Enter M to caluculate mileage , D for distance traveled ,G for Gal per miles and Q to quit the program ";
cin>>x ;

cout << x << endl ;

switch (x)
{
case 'm':
case 'M':

cout << "enter the fuel used";
cin>>FuelUsed;
cout<<"enter mileage ";
cin>>Mileage;
cout <<double MilesperGal(double F,double m);

break ;
case 'd':
case 'D':
cout << "enter the fuel used";
cin>>FuelUsed;
cout<<"enter MPG ";
cin>>MilesPerGal;


cout <<double mileage(double F,double M);

break ;
case 'g':
case 'G':
cout << "enter the Mileage used";
cin>>Mileage;
cout<<"enter mileage ";
cin>>MilesPerGal;
cout << double fuelUsed (double M,double MPG) ;



default:
return 0; }

}

[buffbill]

This looks the same as the thread which jsmith is helping you with.
Why are you duplicating and why don`t you put your code within code tags?? by selecting the code and hitting # under format (RHS of code window)This really helps others to read you code.

[seymore15074]

Just a small note: I don't even read code that isn't in the code tags. It's hard on the eyes and, well, that's all it takes for me to move on.

[onur]

#include<iostream>
using namespace std;
double MilesperGal(double F,double m)
{
double M;



M = m/F;
return M;


}
double mileage(double F,double M)
{
double m;

m=F*M;


return m;

}
double fuelUsed (double M,double MPG)
{
double f;


f=M/MPG;


return f;


}
int main()
{
double FuelUsed;
double Mileage;
double MilesPerGal;

char x ;

cout<<"Enter M to caluculate mileage , D for distance traveled ,G for Gal per miles and Q to quit the program ";
cin>>x ;

cout << x << endl ;

switch (x)
{
case 'm':
case 'M':

cout << "enter the fuel used";
cin>>FuelUsed;
cout<<"enter mileage ";
cin>>Mileage;
cout <<double MilesperGal(double F,double m);
 //otherwise you declare the function not call it. This problem occurs 2 more times

break ;
case 'd':
case 'D':
cout << "enter the fuel used";
cin>>FuelUsed;
cout<<"enter MPG ";
cin>>MilesPerGal;


cout <<double mileage(double F,double M);

break ;
case 'g':
case 'G':
cout << "enter the Mileage used";
cin>>Mileage;
cout<<"enter mileage ";
cin>>MilesPerGal;
cout << double fuelUsed (double M,double MPG) ;



default:
return 0; }

}