c_ch01_ex16.c

/*Exercise 1-16. 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.*/
#include <stdio.h>
#define MAX     1000
int get_line(char str[], int length);
void copyStr(char str[], char dest[], int length);
int main()
{
        int length = MAX, max = 0;
        char str[MAX], dest[MAX];
        while ((length = get_line (str, MAX)) > 0)
                if (length > max) {
                        max = length;
                        copyStr(str, dest, MAX);
                }
        printf("%d %s\n", max, dest);
        return 0;
}
int get_line(char str[], int length) {
        int c, i = 0;
        while ((c = getchar()) != EOF && c != '\n' && i < length - 1)
                str[i++] = c;
        str[i] = '\0';
        return i;
}
void copyStr(char str[], char dest[], int length) {
        int i = 0;
        while ((dest[i] = str[i]) != '\0' && i < length - 1)
                i++;
        dest[i] = '\0';
}