[Dev-C++] problem with stdin and stdout

[Luigi S. <gi...@li...>]

Hello list

I tried to make a simple program that prints the amount of characters found 
in a file. Here is my code:

count.c
------
#include <stdio.h>

int
main()
{
   int n = 0;

   while (getchar() != EOF)
     n++;

   printf("n = %d\n", n);

   return 0;
}
---------


One could use the program in one of these 4 ways:
1) count              get input from stdin and print amount of character to 
stdout
2) count < foo        get input from file "foo" (using redirection) print 
to  stdout
3) count > bar        get input from stdin, print output to file "bar"
4) count < foo > bar  get input from "foo", print output to "bar"

IMHO the above 4 commands are equivalent (to the extent that one 
types  what is contained in the file "foo", when the input comes "directly" 
from stdin), so I expected the code to behave in the same way independent 
of the command I used; here are my results: say that the file "foo" is the 
following (an '@' stands for EOF):

foo
-----
aa@
-----

When I try command #2 and #4 I get the correct answer: that is "n = 2".
When I try command #3 (and manually type "aa+CTRL-z" on stdin) I find that 
"bar" is

bar
------
n = 2
------

Strange enough when I use command #1 (and manually type "aa+CTRL-z" on 
stdin) I see nothing displayed!

I have tried the above with MinGW 2.95 on a Win98SE system. I think the 
problem is related to Windows, because I remember asking a similar question 
to Mr. Vranos and he answered me that he had no problem, he was using MinGW 
2.95 too, but his system was running a different version of Windows (I'm 
not sure which one).

I would appreciate if someone, running Windows 98SE, could try the above 
using my same compiler (it is the one shipped with Dev-C++ 4.0 and I think, 
but am not sure, Dev-C++ 4.1) and let me know what happens: at least I 
would make sure that the problem is related to my installation of Windows. 
Of course any idea about what I am doing wrong is welcome.

By the way the following code works:

count2.c
------
#include <stdio.h>

int
main()
{
   int n = 0;

   while (getchar() != EOF)
     n++;

   puts(""); /* this is the "magic" line */
   printf("n = %d\n", n);

   return 0;
}
---------

Thank you for your time.

--
gisan
gi...@li...