database file open problem in sqlite

#include "CppSQLite.h"
#include <ctime>
#include <iostream>
#include <fstream>
using namespace std;
const char* gszFile = "D:\\doc\\SQLiteDatabaseBrowserPortable\\Data\\asset.db"; 
int main(int argc, char** argv)
{
    try
    {
        int i, fld;
        time_t tmStart, tmEnd;
        CppSQLiteDB db;
        db.open(gszFile);
    }
    catch (CppSQLiteException& e)
    {
        cerr << e.errorCode() << ":" << e.errorMessage() << endl;
    }
    return 0;
}</fstream></iostream></ctime>