Making a File to be read

[dapernia]

Hi:

My program creates a file to store the read data in the parallel port.
I know how to do it with fopen and fclose,
but the problem is because the program makes an infinite loop and i need to be able to read the file whenever i want and with these functions i can't see it until the program finishes.

Does anyone know how to append the lines in the file and i can read it while the program is still running?

[quzah]

for( ;; )
{
    FILE *fp = fopen( "foo", "a+" );
    char buf[] = "hello\n";
    fwrite( buf, sizeof(char), strlen(buf), fp );
    fclose( fp );
}

Or just don't even bother reopening and closing, and just rewind and seek to wherever you need. Naturally you're better off with binary files if you're going to be seeking.

Quzah.

[dapernia]

Thanks a lot. I'll try this!!!

[Brian]

while (1) pwns for ( ;; ) (IMO)

[chrismiceli]

did you just say pwns, :)
yeah, i use while(1) over for(;;) to, more logical to me.

[Prelude]

>while (1) pwns for ( ;; ) (IMO)
Except when you're using an anal compiler that flags a warning with while (1). I prefer a clean compile, and for (;;) has never given me a warning on any of my compilers.

[quzah]

Originally posted by Prelude
>while (1) pwns for ( ;; ) (IMO)
Except when you're using an anal compiler that flags a warning with while (1). I prefer a clean compile, and for (; has never given me a warning on any of my compilers.

Plus a while takes 8 characters, and for takes seven, squashing white space in both.

Quzah.

[WaltP]

Originally posted by quzah
Plus a while takes 8 characters, and for takes seven, squashing white space in both.

Quzah.

Sheesh!

[Sebastiani]

Originally posted by WaltP
Sheesh!

Heh, can't get any more efficient than that!

[WaltP]

Originally posted by Sebastiani
Heh, can't get any more efficient than that!

In the code section, you sure can (if you ignore the definition area):

#define L8 while(1)

int main()
{
    L8
    {
    }
     return 0;
}