main.cpp
										#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include <unistd.h>

#include <thread>

void loop(char * data) 
{
    for (int i = 0; i < 5; ++i)
    {
        printf("hello from function %d %s \n", i , data);
        usleep(10);
    }
}

class test
{
public:
 
    void loop(int a)
    {
        for (int i = 0; i < 5; ++i)
        {
            printf("hello from class %d\n", i );
            usleep(10);
        } 
    }
    
};

typedef void * (*THREADFUNCPTR)(void *);

main()
{
    test t;

    pthread_t thread0, thread1;

    pthread_create(&thread0, NULL, (THREADFUNCPTR) &test::loop, &t);
    pthread_create(&thread1, NULL, (THREADFUNCPTR) loop, (void*) "data");

    pthread_join(thread0, NULL);
    pthread_join(thread1, NULL);

    exit(EXIT_SUCCESS);
}