Re: Real Time IO routines

On Oct 26, 4:14 pm, andrew <andrew.carr...@xxxxxxxxxxx> wrote:


start := clock;
--I run my algorithm here
finish := clock;
ada.Text_IO.put_line("time = " & duration'image(to_duration(finish -
start)));

the output is always time = 0.000000000. I know it had to take some
time because it takes about 10 seconds for the program to reach that
point in the code. Overflow maybe?

For years I used the identical logic in an exercise in plotting
running times for various sorting algortihms in a unit on Big-O. It
worked fine for the old GNAT (Ada 95). Last year when I recompiled it
with GNAT GPL, I got the same results as you - all times gave zero.
When I added a delay 10.0, it worked as Adam reported. I meant to
submit a bug report, but never got around to writing it up. I haven't
tried it with the latest GPL version.

John


.

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