help with creating and calling a function

[joelw]

I need help with creating and calling a function StudentData S2 = StudentData( S1 );

this what i got so far:

#include <iostream>

using namespace std;
struct Student 
{
       char Name[30]; 
       float GPA;
       int Major; 
}; 

int main()
{
    int S1;
    int S2;
   
    
    system("PAUSE");
    return EXIT_SUCCESS;
}

if anyone could help much appreciated thanks in advance.

[redhead]

As this is C++ I would use classes instead of structs.. And then just overload the standard operators.

#include <iostream>
#include <string>
class student
{
  private:
    student(void){}; // Impossible to create a student without a name
  public:
    std::string name;
    int major;
    float gpa;
    student(std::string n){name=n;};
    student(std::string n, int m){name=n; major=m;};
    student(std::string n, int m, float g){name=n; major=m; gpa=g;};
    student operator= (student s){ 
      name=s.name; 
      major=s.major; 
      gpa=s.gpa;
    };
};
std::ostream &operator<<(std::ostream &os, student s){
  os << s.name << std::endl;
  os << '\t' << s.major << std::endl;
  os << '\t' << s.gpa << std::endl;
  return os;
};

int main()
{
  student s1("felix", 4, 3.9);
  student s2 = s1;
  std::cout << s1;
  std::cout << s2;
  return 0;
}

[joelw]

ok but could it be done in stuct basically i need to create and call a function called StudentData S2 = StudentData( S1 ); The function receive as a parameter a reference to the structure( prototyping will handle this) and will return a reference to the structure. Use couts and cins for getting data from the user. (For testing puposes, change the data in S1 so that the GPA is 3.5 and the Major is 2.)

if you can give me an example of this.
Thanks in advance.

[albtross]

like this??

#include<iostream>
using namespace std;
struct Student 
{
       char Name[30]; 
       float GPA;
       int Major; 
}; 
Student studentdata(Student&);

int main()
{
	struct Student s1;
	struct Student s2;
	cout << "please enter your name: \n";
	cin >> s1.Name;
	cout << "please enter your GPA: \n";
	cin >> s1.GPA;
	cout << "please enter your major: \n";
	cin >> s1.Major;
	s2=studentdata(s1);
	cout << s2.GPA <<endl;
	cout << s2.Major << endl;
	cout << s2.Name << endl;
      
    return 0;

}
Student studentdata(Student &s1)
{
	cout << "please enter your name: \n";
	cin >> s1.Name;
	cout << "please enter your GPA: \n";
	cin >> s1.GPA;
	cout << "please enter your major: \n";
	cin >> s1.Major;
	return s1;
}

[joelw]

thanks and now if i need to call a function called ChangeData with a pointer to S2 as the argument ChangeData( &S2 ); changing the data in S2 so that the GPA is 3.0 and the Major is 1 would i do that the same way as the first function?

[redhead]

Look at what studentdata() does in albtross example, and use the same method. We are not here to do your homework.

[joelw]

ok so far this is what ive got for my code im trying to figure out how to start my for loop that will receive the array and the int that represents the count(2)?

#include<iostream>
using namespace std;
struct Student 
{
       char Name[30]; 
       float GPA;
       int Major; 
}; 

//Function Prototype
Student studentdata(Student&);

//Function Prototype
Student changeData(Student&);

//Function Prototype
Student GetStudents(Student&);

int main()
{
	struct Student s1;
	struct Student s2;
	struct Student s3;
	
	s2 = studentdata(s1);
	s2 = changeData(s2);
	s2 = GetStudent(s3);
    cout << "GPA: " << s2.GPA <<endl;
	cout << "Major: " << s2.Major << endl;
	cout << "Students Name: " << s2.Name << endl;
      
     return 0;

}
Student studentdata(Student &s1)
{
	cout << "please enter your name: ";
	cin >> s1.Name;
	cout << "please enter your GPA: ";
	cin >> s1.GPA;
	cout << "please enter your major: ";
	cin >> s1.Major;
	return s1;
}

Student changeData(Student &s2)
{
   s2.GPA = 3;
   s2.Major = 1;
   return s2;   
}

Student GetStudents(Student &s3)
{
        for (

[Valmont]

The rest of the code is missing. Be accurate. Even when you post