pthread_self example c c++

PTHREAD_SELF(3)          BSD Library Functions Manual          PTHREAD_SELF(3)

NAME
     pthread_self -- get the calling thread's ID

SYNOPSIS
     #include <pthread.h>

     pthread_t
     pthread_self(void);

DESCRIPTION
     The pthread_self() function returns the thread ID of the calling thread.

RETURN VALUES
     The pthread_self() function returns the thread ID of the calling thread.

ERRORS
     None.

SEE ALSO
     pthread_create(3), pthread_equal(3)

STANDARDS
     pthread_self() conforms to ISO/IEC 9945-1:1996 (``POSIX.1'').

Example of pthread_self

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

void *func(void *a)
{
    pthread_t id;
    id = pthread_self();
    printf("->%d\n", id);
}

int main(int argc, char **argv)
{
    pthread_t p_thread;
    pthread_create(&p_thread, NULL, func, (void *)NULL);
    printf("%d\n", p_thread);
    pthread_create(&p_thread, NULL, func, (void *)NULL);
    printf("%d\n", p_thread);

 return 1;
}