K and R C, Solution to Exercise 1-22:
 C program that folds the very long lines of input into two or more shorter lines. K and R C Programs Exercises provides the solution to all the exercises in the C Programming Language, second addition, by Brian W.Keringhan and Dennis M.Ritchie(Prentice Hall,1988). You can learn and solve K&R C Programs Exercise. Read more about C Programming Language .

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#include "stdio.h"

#define MAXSIZE 1000

char line[MAXSIZE];

int get_line(void);


int
main()
{
 int i,strlen;
 int location, spaceholder;
 const int foldlength=70;

 while (( strlen = get_line()) > 0 )
 {
  if( strlen < foldlength )
  {
  }
  else
  {

   i = 0;
   location = 0;
   while(i<strlen)
   {
    if(line[i] == ' ')
     spaceholder = i;

    if(location==foldlength)
    {
     line[spaceholder] = 'n';
     location = 0;
    }
    location++;
    i++;
   }
  }
  printf ( "%s", line);
 }
 return 0;
}


int get_line(void)
{
 int c, i;
 extern char line[];

 for ( i=0;i<MAXSIZE-1 && ( c=getchar()) != EOF && c != 'n'; ++i)
  line[i] = c;
 if(c == 'n')
 {
  line[i] = c;
  ++i;
 }
 line[i] = '