On May 13, 1:44 pm, li...@eitanadler.com (Eitan Adler) wrote:
> > The C programme looks like this (very simple)
> > #include <stdio.h>
> > int main()
> > {
> > int i;
> > char s[20] = "hello from c";
> > for (i = 0; i < 15; i++) {
> > sleep(1);
> > printf("%s %d\n", s, i);
> > }
> > return 0;
> > }
> > and yet I only get the output to perl when it is finished and died.
> > Thanks,
>
> You get multiple levels of output buffering:
> 1) C does its own output buffering. Take a look at man setvbuf(1)
> 2) The operating system buffer which is entirely different than the C buffer
> You need to disable both of them to get fully unbuffered output
You could also call fflush(stdout); after the printf function.
http://www.thinkage.ca/english/gcos/expl/nsc/lib/fflush.html
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