Practical C Programming

How it works...

A macro, max, is defined of size 100. A function, ifexists(), is defined that simply returns true (1) or false (0). The function returns true if the supplied value exists in the specified array, and false if it doesn't.

Two arrays are defined, called p and q, of size max (in other words, 100 elements). You will be prompted to specify the length of the array, p, and then asked to enter the elements in that array. After that, you will be asked to specify the length of array q, followed by entering the elements in array q.

Thereafter, p[0], the first element in array p , is picked up, and by using the for loop, p[0] is compared with all the elements of array q. If p[0] is found in array q, then p[0] is added to the resulting ...