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A problem with function arguments

thatotherguy237 (18)
Hello, I have been doing some exercises in my book, and have made the following code, with one compiler error:
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#include <iostream>
using namespace std;
struct student
{
	char fullname[30];
	char hobby[30];
	int ooplevel;
};
int getinfo(student*, int);
void display1(student);
void display2(student);
void display3(const student*, int);
int main()
{
	cout << "Enter class size \n";
	int class_size;
	cin >> class_size;
	while(cin.get() != '\n');

	student *pt_stu = new student[class_size];
	int entered = getinfo(pt_stu, class_size);
	for(int i = 0; i < entered ; i++)
	{
		display1(pt_stu[i]);
		display2(pt_stu+i);  //Here
	}
	display3(pt_stu, entered);
	delete[] pt_stu;
	cout << "Done\n";
	return 0;
}
int getinfo(student *ar_student, int size)
{
	int i = 0;
	cout << "Enter info for each student:\n";
	for(i = 0; i < size; i++)
	{
		cout << "Student " << i+1 << " name: ";
		if(!(cin.getline(ar_student[i].fullname, 30)))
		{
			cout << "Input terminated\n";
			cin.clear();
			while(cin.get() != '\n');
			break;
		}

		cout << "Student " << i+1 << " hobby (NONE for no hobby): ";
		while(!(cin.getline(ar_student[i].hobby, 30)))
		{
			cout << "Error, try again:\n";
			cin.clear();
			while(cin.get() != '\n');
		}

		cout << "Enter op level(-1 for undefined): ";
		while(!(cin >> ar_student[i].ooplevel))
		{
			cin.clear();
			while(cin.get() != '\n');
		}
	}
	return i;
}
void display1(student sumstudent)
{
	cout << "(By Value)\n";
	cout << "Name: " << sumstudent.fullname << endl;
	cout << "Hobby: " << sumstudent.hobby << endl;
	if (sumstudent.ooplevel == -1)
		cout << "ooplevel: Undefined\n";
	else
		cout << "ooplevel: " << sumstudent.ooplevel << endl;
}
void display2(student *sumstudent) //and here
{
	cout << "(By address)\n";
	cout << "Name: " << sumstudent->fullname << endl;
	cout << "Hobby: " << sumstudent->hobby << endl;
	if (sumstudent->ooplevel == -1)
		cout << "ooplevel: Undefined\n";
	else
		cout << "ooplevel: " << sumstudent->ooplevel << endl;
}
void display3(const student *ar_stu, int size)
{
	cout << "List all:\n";
	for(int i = 0; i < size; i++)
	{
		cout << "Name: " << ar_stu[i].fullname << endl;
		cout << "Hobby: " << ar_stu[i].hobby << endl;
		if (ar_stu[i].ooplevel == -1)
			cout << "ooplevel: Undefined\n";
		else
			cout << "ooplevel: " << ar_stu[i].ooplevel << endl;
	}
}

The compiler says that:
 
 
error: could not convert ‘(pt_stu + ((sizetype)(((long unsigned int)i) * 64ul)))’ from ‘student*’ to ‘student’

I've tried experimenting with other functions and purposely giving them wrong arguments, but the compiler errors with these experiments are different.
I also tried using display2(&pt_stu[i]);, but that didn't do much?
Can someone lend a hand?
(by the way, does the stack overflow community accept beginner questions?)
MikeyBoy (5631)
The error message gives you a pretty huge clue. You've declared display2() to take an argument of type student (on line 11), but you're trying to pass in a pointer to student instead.
thatotherguy237 (18)
Didn't even consider looking at the prototype, now i feel really stupid..
thanks
MikeyBoy (5631)
No problem - it's easily done! You're welcome :)
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