從函式回傳指標

1. 宣告
   

   int * myFunction()
   {
   ...
   }
   

2. 範例：在函式中產中 10 個隨機數字，利用指標回傳數字陣列。
   

   #include <stdio.h>
   #include <time.h>
    
   /* function to generate and retrun random numbers. */
   int * getRandom( )
   {
      static int  r[10];
      int i;
    
      /* set the seed */
      srand( (unsigned)time( NULL ) );
      for ( i = 0; i < 10; ++i)
      {
         r[i] = rand();
         printf("%d\n", r[i] );
      }
    
      return r;
   }
    
   /* main function to call above defined function */
   int main ()
   {
      /* a pointer to an int */
      int *p;
      int i;
   
      p = getRandom();
      for ( i = 0; i < 10; i++ )
      {
          printf("*(p + [%d]) : %d\n", i, *(p + i) );
      }
    
      return 0;
   }