Lab Practice Quiz 5                         

Write a program that reads lines of text  and prints the longest line. (I will provide
the following main program. You just need to provide the functions similar to the 
following.)

#include <stdio.h>
#define MAXLINE 1000     /* maximum input line size */
int  getline(char line[], int maxline);
void copy(char to[], char from[]);
/* array2.c   print the longest input line */
main()
{
    int len;                /* length of current line */
    int max;                /* length of longest line */
    char line[MAXLINE];     /* the current line       */
    char longest[MAXLINE];  /* the longest line       */
    max = 0;
    while ((len = getline(line, MAXLINE)) > 0)
        if (len > max) {
            max = len;
            copy(longest, line);
        }
    if (max > 0)            /* at least one line      */
        printf("%s", longest);
    return 0;
}
/* getline reads a line into s and returns the length */
int getline(char s[], int lim)
{
    int c, i;
    for (i = 0; i<lim 1 && (c=getchar())!=EOF && c!='\n'; ++i)
        s[i] = c;
    if (c == '\n') {
        s[i] = c;
        ++i;
    }
    s[i] = '\0';
    return i;
}
/* copy copies from the array "from" into "to" */
void copy(char to[], char from[])
{
    int i;
    i = 0;
    while ((to[i] = from[i]) != '\0')
        ++i;
}