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 halloc()                Allocate and Zero Huge Memory Block

 #include   <malloc.h>                   Required for declarations only

 void       huge *halloc(n,size);
 long       n;                           Number of elements to allocate
 size_t size;                            Number of bytes in each element

    halloc() allocates space for a huge array consisting of 'n' elements,
    initialized to 0, of 'size' bytes each.  'size' must be a power of 2
    if the total size to be allocated (n*size) is greater than 128K.

    Returns:    A void huge pointer to the allocated space.  Returns NULL
                (defined in <stdio.h>) if the space cannot be allocated.

      Notes:    The returned space is always properly aligned for any
                type of object.  Use a type cast if you a need a pointer
                to a type other than void huge.

 Portability:   Applies to MS DOS only.

   -------------------------------- Example ---------------------------------

    The following statements allocate space for 50000 long integers and
    then free the allocated space.

           #include <malloc.h>
           #include <stdio.h>      /* for printf and NULL */

           long huge *huge_memptr;

           main()
           {
               if ((huge_memptr = (long huge *) halloc(50000L, sizeof(long)))
                        == NULL)
                    printf("not enough memory for array\n");
               else {
                    .
                    .
                    hfree(huge_memptr);
                }
           }