Dynamic Struct Array

[Ed4434]

Hey people, would just like to ask someone if they could take a look at my code and tell me why it produces a runtime error?

I'm trying to create a dynamic array of structures for an array of "People Profiles" with a few bits of info about those people.

Any help is appreciated :)

Thanks,
Ed

#include <iostream>
#include <string>

using namespace std;

struct Profile
{
	string name;
	string hospitalOfBirth;
	string city;
	int dayOfBirth;
	int monthOfBirth;
	int yearOfBirth;
};

int profileNum;

Profile* personProfile = new Profile[profileNum];


int main()
{
	cout << "Enter the number of profiles: ";
	cin >> profileNum;

	for(int i = profileNum; i <= profileNum; i++)
	{
		cout << "Enter the name of this person: ";
		getline(cin, personProfile[i].name);
		cin.ignore();
	}

	delete [] personProfile;

	cin.ignore();
	return 0;
}

[Mats]

for(int i = profileNum; i <= profileNum; i++)

Let's say profileNum was entered in as 3.

i = 3; i <= 3; i++. This is a problem. Try i = 0; and i < profileNum.

Profile* personProfile = new Profile[profileNum];

This line is a problem. You need to give this array a size. new Profile[5] for example would be a valid size and you would not get that runtime error. At the moment, the size is whatever junk value is in int profileNum.

[Ed4434]

Okay, thanks for the help :)

Firstly, if I give

Profile* personProfile = new Profile[profileNum];

a value, is it not then a constant sized array??

Sorry if this is a stupid question, the new operator is quite "new" to me.

Thanks,
Ed

EDIT: Actually don't worry, just changed the program and now it works xD

Thanks a lot!