Subj : Wrong abt finished program - why no output?
To   : borland.public.cpp.borlandcpp
From : "DAS" <spammescag@aol.com>
Date : Sun Aug 10 2003 12:46 pm



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Message 1 
From Doug_S. (ProCADSamples@aol.com)
Subject Can someone help me w/ this program... 
Newsgroups comp.lang.c.moderated
Date 2003-08-02 205122 PST 

I'm getting NO errors and 2 warnings with this code.   I don't have much available to me in learning C, but I'm trying.
The warnings say that "OPEN() and READ() are undeclared - assuming an external is returning integer values."
Can someone here tell me why my console is idle but for the blinking cursor?   I've come a long way to give up now.

My program takes a text file of 5 integers per line, 140-odd lines of this, and basically puts it into an array.   The lines are separated by LF-CR, of course.
The integers have to be matched in value with the rows in the array, and my formatted printout will show 52 rows of integers.   The integers will be exactly as numerous as the rows in the text file are, so it will show 52 rows by about 140 columns.

The array rows will be made of integers only increasing in value, because each of the 5 integers-per-line in the text will be matched with a given array row according to the integer's actual value, and these integers repeatedly match and increment the row values as the rows progress from left-to-right (as read).   Many previous array values repeat because there is not often a match with the text data.

INPUT   n1 n2 n3 n4 n5 LFCR
        n6 n7 n8 n9 n10 ....

OUTPUT
0 0 0 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 (... 140 columns of this ) ...5 5 5 5
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 3 3 3 3 3 3 3 3 3 3 3 ... 3 3 3 3 4 4 4
(52 rows of this) 




#include <stdio.h>
#include <fcntl.h>                    /* used by open() */
#define SIZE 1024                     /* 140 x 7bytes, incl 1LF */
#define CTRL_Z '\032'                 /* text-mode EOF */

main(argc,argv)
int *argv[];
{
 char buffer[SIZE];               /* hafta make do w/o int decl */
 int fd; 
 long int n=1;
 long count = 0;
 int current[52][141];            /* r52c141 array, built-up */
 int row;                         /* from repeat passes of a */
 int col;                         /* current element index */
       /* 52r140c printout omits init col - used for its 0's */


 for (row = 0; row < 52; row++)   /* initialize output array */
	{
	 for(col = 0; col < 141; col++)
		 current[row][col] = 0;
	}
   row = 0;
   col = 1;


 
 fd = open(argv[1], O_RDONLY | O_TEXT); 
 /* while (n != CTRL_Z )    /* big loop - begin new dwg date to EOF  */
 while (n > 0 )           /* big loop - begin new dwg date to EOF    */
 { col++;                /* only cols need init 0-buffer: (r[1]c[2] */
       while ( (n = read(fd,buffer,SIZE)) != '\n' )  /* skip CR-LF  */
	   { 
		   for ( row = 0; row = 52; row++ ) 
	          { 
			   current[row][col] = current[row][col-1]; /* copy prv */
			   if ( n == row )                 
                {                             
                   current[row][col] = current[row][col-1] + 1; 
                } /* this IS now a match, so increment the copy */
	          } 
	   }
/* hey - break-out read file into buffer, access data 1, access buffer many */
 } 

  for(row = 0; row < 52; row++) 
	 { 
	  printf("\n");       
      for (col = 0; col < 140; col++)              
         printf ("%d ", current[row][col]);       
      }     

/*   for(row = 1; row = 52; row++) */
/*      {                  */       
/*	printf ("\n");       */
/*        for (col = 1; col = 140; col++)              */
/*            printf ("%i ", current[row][col]);       */
/*      }     */

 return(0);
}

.