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#include<stdio.h>
#define MAXLENGTH 1000
int get_line(char line[], int maxlength);
void copy(char to[], char from[]);
/*
* MAIN
* Prints longest line in STDIN.
*/
main() {
int len; // current line length
int max; // maximum length seen so far
char line[MAXLENGTH]; // current input line
char longest[MAXLENGTH]; // longest line saved here
max = 0;
while ((len = get_line(line, MAXLENGTH)) > 0)
if (len > max) {
max = len;
copy(longest, line);
}
if (max > 0) // there was a line
printf("%d\t", max);
printf("%s", longest);
return 0;
}
/*
* GET_LINE
* Read STDIN into LINE up to MAXLENGTH and return its length.
* Returns the length of a the line.
*/
int get_line(char line[], int maxlength) {
int c, i;
for (i = 0; i < maxlength - 1 && (c = getchar()) != EOF && c != '\n'; ++i)
line[i] = c;
if (c == '\n') {
line[i] = c;
++i;
}
line[i] = '\0';
return i;
}
/*
* COPY
* Copy FROM into TO; assume TO is big enough.
*/
void copy(char to[], char from[]) {
int i;
i = 0;
while ((to[i] = from[i]) != '\0')
++i;
}
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