1 /* 1-16. Revise the main routine of the longest-line program so it will
2  * correctly print the length of arbitrarily long input lines, and as much
3  * as possible of the text.
4  */
5 
6 /* MAXLINE has been reduced for easier testing */
7 #include <stdio.h>
8 #define MAXLINE 10
9 
10 int getlin(char line[], int maxline);
11 void copy(char to[], char from[]);
12 
13 main()
14 {
15 	int len;	/* current line length */
16 	int max;	/* maximum length seen so far */
17 	char line[MAXLINE];	/* current input line */
18 	char longest[MAXLINE];	/* longest line saved here */
19 	
20 	max = 0;
21 	while ((len = getlin(line, MAXLINE)) > 0)
22 		if (len > max) {
23 			max = len;
24 			copy(longest, line);
25 		}
26 	if (max > 0)	/* there was a line */
27 		printf("%d chars: %s", max, longest);
28 	return 0;
29 }
30 
31 int getlin(char s[], int lim)
32 {
33 	int c, i;
34 
35 	for (i=0; i<lim-1 && (c=getchar())!=EOF && c!='\n'; ++i)
36 		s[i] = c;
37 	if (c == '\n') {
38 		s[i] = c;
39 		++i;
40 	}
41 	s[i] = '\0';
42 	while ((c=getchar())!=EOF && c!='\n')
43 		++i;
44 	return i;
45 }
46 
47 void copy(char to[], char from[])
48 {
49 	int i;
50 	i = 0;
51 	while ((to[i] = from[i]) != '\0')
52 		++i;
53 }