🚀 go-pugleaf

I am writing a program for which I need exact (as much as is possible)
timings of the run time.  Using the emx compiler and the following code:

.
.
.
T1 = clock();

	algorithm crunching...
T2 = clock();

cout<<T2 - T1<<"\n";

This gives the real time between the two calles to clock().  What I need is
the actual CPU time.  Is there anyway to get this??

I also need to access the round up and round down of a floating point number.
Does anyone know of the system calls that are neccesary in order to get
these figures?  If one has a math coprocessor, I know that these are
available but I do not know how to get ahold of those numbers.

Thanks in advance

--Ron