class Utils
{
public:
static int stringToInt(std::string);
static float stringToFloat(std::string);
//Many more Generalized functions like this
}

#include <vector>
#include <map>

std::string str ="����������";
std::cout<<str.length()<<std::endl;

class xxx
{
    public:
    template<class T>
     T void func(int a)
     {
        /* Here depending upon some-cases, i ll return                                       
         * either int, float, std::string, etc...
         * How to do it, i am getting undefined refernce  
         * to func
         */
    }
};

class BaseExcep
{
protected:
      std::string message;

public:
      BaseExcep(std::string);
      virtual void printException();

};

class DerivedExcep1 : public BaseExcep
{
public:
      DerivedExcep1(std::string);
};

class DerivedExcep2 : public DerivedExcep1
{
public:
     DerivedExcep2(std::string);
};

#include <stdio.h>
#include <time.h>
#include <sys/time.h>

void getTime()
{
	FILE* fp = fopen("Time.txt","w+");
    struct timeval usec_time;
    time_t now = time(0);
    gettimeofday(&usec_time,NULL);
    // format time
    struct tm *current = localtime(&now);
    printf("%d:%d:%d\n",current->tm_hour,

#include <string>
namespace xxx
{
      class abc
      {
           std::string m_name;

           public:
              void initialize();
      };
};

#include <sample.h>
using namespace xxx;

void abc::initialize()
{
    m_name = "Siva";

int main()
{
    int* a= NULL;
    return 0;
}