pthread.h

typedef uintptr_t pthread_t;
typedef long pthread_once_t;
typedef unsigned pthread_key_t;

typedef unsigned pthread_mutexattr_t;

typedef void *pthread_barrierattr_t;
typedef int pthread_condattr_t;
typedef int pthread_rwlockattr_t;

typedef int clockid_t;

typedef unsigned mythread_key_t;
typedef unsigned int myint_t;

int create_thread(mythread_key_t key,myint_t myint) {
    printf("mythread_key_t=%d n ",key);
    return myint;
}

int num = 10;
int num1 = 20;

mythread_key_t key ;
key = num;

myint_t myint;
myint = num1;

int result = create_thread(key,myint);
printf("result=%d n",result);