X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f
From: lando <landolini AT yahoo DOT com>
User-Agent: Mozilla/5.0 (Windows; U; Win 9x 4.90; en-US; rv:1.5) Gecko/20031007
X-Accept-Language: en-us, en
MIME-Version: 1.0
Newsgroups: comp.os.msdos.djgpp
Subject: gcc
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
Lines: 80
Message-ID: <fAVMb.107068$_P.3932301@news4.tin.it>
Date: Tue, 13 Jan 2004 17:06:19 GMT
NNTP-Posting-Host: 80.180.169.215
X-Complaints-To: newsmaster AT tin DOT it
X-Trace: news4.tin.it 1074013579 80.180.169.215 (Tue, 13 Jan 2004 18:06:19 MET)
NNTP-Posting-Date: Tue, 13 Jan 2004 18:06:19 MET
Organization: TIN
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com




This program (copied from "The C programming language" by Kernigham/ 
Ritchie)
doesn't work fine.
The operator enters some strings of characters and at EOF the program has to
display the longest string typed.........and this doesn't happen.
Where is the problem ?Thanks a lot.


#include <stdio.h>
#define  MAXLINE 100
int max;
char line[MAXLINE];
char longest[MAXLINE];
int getline(void);
void copy(void);
main()
{

   int  len;
  extern int  max;
   extern char longest[MAXLINE];
   max=0;

   while ((len=getline()) > 0)
      if  (len > max)
      {
       max = len;
        copy();

      }
   if (max > 0)
    printf("%s",longest,'\n');

   return 0;

}

int  getline(void)
{

   int c,i;
   extern char line[];
   for (i=0;i<MAXLINE-1 && (c=getchar()) !=EOF && c !='\n';++i)

       line[i] = c;
   if (c=='\n')
   {
     line[i] = c;
       ++i;
   }
      line[i]='\0';

      return i;
}

void copy(void)
{
   int i;
   extern char line[];
   extern char longest[];
   i=0;
     while ((longest[i] = line[i]) !='\0')
             ++i;



}