Exercise 1.16 - Print length of arbitrary long input line


Revise the main routine of the longest-line program so it will correctly print the length of arbitrary long input lines, and as much as possible of the text.



A string in C is a character array which ends in 0. getline is a function in our program, which reads one character at a time using getchar and stores it in a character array called s[] and it returns the length of the array.

We keep track of each line and it’s length using a variable, max. If the length of the line is greater than max, then we copy that line into the maxline using a copy routine.

At the end of the program, whichever was the longest line that was copied in maxline array, we just print that.