Re: Unbuffered line input and the GNU library

["Claudio Bley" <bley@cs.uni-magdeburg.de>]

>>>>> "Ish" == Ish Rattan <ishwar@pali.cps.cmich.edu> writes:

    Ish> On Mon, 19 Aug 2002, Steve Dondley wrote:
    >> function.  However, I did a grep on every *.h file on my
    >> computer and wasn't
    Ish> It is a macro defined in /usr/include/stdio.h

I can't find it there (glibc 2.2.5 Debian GNU/Linux). What's the
version of your C library that you're using?

Usually, in order to get unbuffered line input you need to switch the
terminal to unbufferd input mode (and properly restore it when done -
I guess this wouldn't work with a simple macro; I'd really like to see
the macro if it really is there).

Here's some code I used for this purpose:

,----
|   struct termios tio_orig;
|   struct termios tio_new;
| 
|   tcgetattr(0, &tio_orig);
| 
|   tio_new = tio_orig;
|   tio_new.c_lflag &= ~(ICANON|ECHO); /* Clear ICANON and ECHO. */
|   tcsetattr(0,TCSANOW,&tio_new);
|   
|   /* ... */
| 
|   tcsetattr(0,TCSANOW,&tio_orig);
`----

Cheers.

-- 
Claudio Bley                                                        _ 
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