Re: execl!

Kev (klmitch@mit.edu)
Wed, 24 Mar 1999 09:02:06 EST

> Have a look at this piece of code.
> The instructions prior to the execl() function is not getting executed.
> When I give a getchar() after the printf statement then the "Tr -module"
> is getting printed.
> From the manpage, what I had understood is that the execl function
> replaces the current process image with the new process image.
> But, Does it replaces the prior instructions also? or what is happening??

nope, stdio is buffering. If you make that "Tr -module\n", it'll magically
work; another alternative is an explicit fflush(). getchar() makes this
work because it forces stdio to flush the buffer so it can use it for
input.

-- 
Kevin L. Mitchell <klmitch@mit.edu>
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