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- /* Demonstrates passing a pointer to a multidimensional */
- /* array to a function. */
-
- #include <stdio.h>
-
- void printarray_1(int (*ptr)[4]);
- void printarray_2(int (*ptr)[4], int n);
-
- main()
- {
- int multi[3][4] = { { 1, 2, 3, 4 },
- { 5, 6, 7, 8 },
- { 9, 10, 11, 12 } };
- /* ptr is a pointer to an array of 4 ints. */
-
- int (*ptr)[4], count;
-
- /* Set ptr to point to the first element of multi. */
-
- ptr = multi;
-
- /* With each loop, ptr is incremented to point at the next */
- /* element (that is, next 4-element integer array) of multi. */
-
- for (count = 0; count < 3; count++)
- printarray_1(ptr++);
-
- puts("\n\nPress a key...");
- getch();
-
- printarray_2(multi, 3);
-
- }
-
- void printarray_1(int (*ptr)[4])
- {
- /* Prints the elements of a single four-element integer array. */
- /* p is a pointer to type int. You must use a type cast */
- /* to make p equal to the address in ptr. */
-
- int *p, count;
- p = (int *)ptr;
-
- for (count = 0; count < 4; count++)
- printf("\n%d", *p++);
- }
-
- void printarray_2(int (*ptr)[4], int n)
- {
- /* Prints the elements of an n by four-element integer array. */
-
- int *p, count;
- p = (int *)ptr;
-
- for (count = 0; count < (4 * n); count++)
- printf("\n%d", *p++);
- }
-