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STDIN

Posted on 2003-11-02
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Last Modified: 2010-04-15
Hi

I'm a fairly new programmer so go easy on me!! , but my question is this:

I have got to write a driver for a simple text editor  program. One of the pascal files in the program has this code:

if (feof(STDIN))
  *c = ENDFILE;
else
{
fread(&ch, sizeof(ch), 1, STDIN);

if (feof(STDIN))
  *c = ENDFILE;
else
*c = ord(ch);
}

return *c;

Now, I know there is not much information here but it is supposed to be a text copier of some sort but when I call this file from the driver, STDIN is always NULL and so throws and error. Now I always thought that STDIN was input from the keyboard but I have never actually used it before in this context. This means that I cannot understand how it works... arrrghhh!!
Do I need to link STDIN to the keyboard somehow???
Do I need to link it to a file in this respect (dont know how to do this either)
Just what is going on .. why is it there :-(

the function is called from a C file driver.

Please help. I will do my best to provide any more info if required. But I havnt got a lot.

Thank you
Dave
0
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Question by:Red_Dash_Dave
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2 Comments
 
LVL 6

Accepted Solution

by:
Ajar earned 200 total points
ID: 9668870
The solution is

#include <stdio.h>

// and instead of    STDIN  use stdin

stdin is linked to the keyboard  readily


0
 

Author Comment

by:Red_Dash_Dave
ID: 10272991
Sorry it took so long to accept your answer.

Thanks for your help :)
Dave
0

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