Check If a Variable FileName exists

Hi folks, I'm trying to check if a file that has a variable name exists in a certain path, but have not been successful until now.
The code is below so that you guys can better understand what I'm trying to do... So any help would be much appreciated...

//---------------------------------------------------------------------------
#include <time.h>
#include <sys/types.h>
#include <stdio.h>
#include <errno.h>
#include <sstream>
#include <vcl.h>
#pragma hdrstop
#include <windows.h>
#include <iostream>
#include <fstream>
#include <cstdlib> //Needed for exit()
#include "Shlwapi.h"
#include "Teste1.h"
#include <sys/stat.h>
using namespace std;
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
	: TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{

	int hour;
	int day;
	int month;
	int year;
	hour= 98;  //Ignores the 9 in the first case so it means 8
	day= 28;
	month= 99;  //Ignores the 9 in the first case so it means 9
	year= 14;
	//working fine
	stringstream ss;

	//address and name of the files
	//create file name
	ss << "C:/Users/rodrigo/Desktop/Calendar/" << hour<< day<< month<< year<<".txt";
	string address;
	address = ss.str();
	//Working after changing the argument to the below one
	ofstream fout(address.c_str());
	fout<<hour<<day<<month<<year;
	fout.close();


}
//---------------------------------------------------------------------------

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The Idea is to create files named as "HourDayMonthYear.txt", where each has 2 numbers to represent them, and afterwards to check if the file exists.

Any help would be much appreciated.
Cheers.