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- /*
- * A D D _ A N Y
- *
- * Add values without regard to data type. This program uses
- * a macro to do the calculation instead of using a separate
- * function for each data type.
- */
-
- #include <stdio.h>
- #include <stdlib.h>
-
- #define ADD(a, b) ((a) + (b))
-
- int
- main()
- {
- int n1 = 20, n2 = 25;
- float f1 = 12.34, f2 = 56.78;
-
- /*
- * Use the ADD macro to add a pair of integers.
- */
- printf("%d + %d = %d\n", n1, n2, ADD(n1, n2));
-
- /*
- * Use the ADD macro to add a pair of reals.
- */
- printf("%f + %f = %f\n", f1, f2, ADD(f1, f2));
-
- /*
- * We can even use the ADD macro with
- * operands of mixed data types.
- */
- printf("%d + %f = %f\n", n1, f1, ADD(n1, f1));
-
- return (0);
- }
-