timing a function

[D Cleveland <dc7525@ship.edu>]

Im looking to check the relative time it takes to call a function and then
return.  does anyone know how i can do this easily?  heres what im hoping
i can do...

int len;

len = check_timer();
function_to_time();
len = check_timer() - len;

and have this return some number telling me the relative time to execute
the function.  if this isnt clear let me know and ill clarify.  thank you
in advance!

Dan

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