Thread: Go to the begining of file (new one)

if i write c++ like this code, write the value to file.
Then,how can i set the pointer back to the beginning of file that i have just written it.

Code:

#include <iostream>
#include <fstream>

using namespace std;

int main()
{
	int a = 10;

	fstream aTa("Data_Check.txt",ios::out);
	for(int i=0;i<a;i++0)
		aTa << i;

	return 0;
}