#include <stdio.h>
#include <pthread.h>

void* fun1(void *pv)
{
    const char *str = pv;
    printf("%s\n", str);
    return NULL;
}

void* (*funptr)(void *);

int main()
{
    char msg1[10]="Hi";
    char msg2[10]="Hello";
    pthread_t pid1, pid2;

    funptr = fun1;

    pthread_create(&pid1, NULL, funptr, msg1);
    pthread_create(&pid2, NULL, funptr, msg2);

    pthread_join(pid1,NULL);
    pthread_join(pid2,NULL);

    return 0;
}