传递一个无符号长指针

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传递一个无符号长指针

#include <stdio.h>

#include <time.h>



void getSeconds(unsigned long *par);



int main () {



   unsigned long sec;

   getSeconds( &sec );



   /* print the actual value */

   printf("Number of seconds: %ld\n", sec );



   return 0;

}



void getSeconds(unsigned long *par) {

   /* get the current number of seconds */

   *par = time( NULL );

   return;

}