On Thursday, 30 April 2015 at 20:54:07 UTC, Martin Nowak wrote:
On 04/30/2015 08:43 AM, Timo Sintonen wrote:
Printf is a little tricky. It is actually a file operation to
stdout and that is actually a syscall to kernel.
No, you usually have to implement some hook for outputting
yourself, e.g. putc or write, printf solely takes care of the
formatting.
My knowledge isn't really deep here, but doesn't printf call
vfprintf(stdout, ...) and
vfprintf call vsnprintf followed by fwrite, etc. ?
Thus I would expect the hook to be somewhere in vfprintf ?
