[TUHS] V6 Console IO

[Larry McVoy]

Yeah, write is unbuffered though I think Noel is correct, it's going to
a tty and the tty will buffer until \n

So you probably have to set the tty in raw mode (sorry that I'm vague,
I never ran V6).

On Fri, Jul 24, 2020 at 12:54:40PM +0800, Paul Riley wrote:
> Sorry, I see you used "write".
> 
> *Paul Riley*
> 
> 
> 
> On Fri, 24 Jul 2020 at 12:41, Paul Riley <paul at rileyriot.com> wrote:
> 
> > Larry,
> >
> > Thanks for that. The documentation for putchar says that it only puts the
> > low byte of the argument, so I assume that passing an int is ok.
> >
> > Paul
> >
> > *Paul Riley*
> >
> >
> > On Fri, 24 Jul 2020 at 10:57, Larry McVoy <lm at mcvoy.com> wrote:
> >
> >> > int main() {
> >> > int c;
> >> > while ((c = getchar()) != EOF) {
> >> > putchar(c);
> >> > }
> >> > }
> >>
> >> int
> >> main()
> >> {
> >>         int     c;
> >>         char    C;
> >>
> >>         while ((c = getchar()) != EOF) {
> >>                 C = c;
> >>                 write(1, &C, 1);
> >>         }
> >> }
> >>
> >

-- 
---
Larry McVoy            	     lm at mcvoy.com             http://www.mcvoy.com/lm