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- /* ------------------------------------------------------ */
- /* ARPTR2FN.C */
- /* Using pointers to functions */
- /* (c) 1990 Borland International */
- /* All rights reserved. */
- /* ------------------------------------------------------ */
- /* veröffentlicht in: DOS toolbox 1'91/92 */
- /* ------------------------------------------------------ */
-
- /*
- This program defines a five element array of pointers to
- functions that take no arguments and return nothing. It
- then initilizes the first two elements of the array with
- pointers to actual functions and executes these functions
- via the array pointers.
- */
-
- #include <stdio.h> // for printf()
-
- // Define 'p' is an array of 5 pointers to functions which
- // take no parameters and return nothing.
-
- void (*p[5]) (void);
-
- /* ------------------------------------------------------ */
- /* function1 - The first demo function */
- /* ------------------------------------------------------ */
-
- void function1(void)
- {
- printf("Hello, in function function1\n");
- }
-
- /* ------------------------------------------------------ */
- /* function2 - The second demo function */
- /* ------------------------------------------------------ */
-
- void function2(void)
- {
- printf("Hello, in function function2\n");
- }
-
- // ------------------------------------------------------- *
- int main()
- {
- // Pointer at array index 0 points at function function1.
-
- p[0]=function1;
-
- // Pointer at array index 1 points at function function2.
-
- p[1]=function2;
-
- // Call function2 directly and then via the array
-
- function2();
- p[1]();
-
- // Call function1 directly and then via the array
-
- function1();
- p[0]();
-
- return 0;
- } // end of main()
- /* ------------------------------------------------------ */
- /* Ende von ARPTR2FN.CPP */
-
-