[erlang-questions] Programming a recursive function that executes n times
Fri Oct 22 09:30:52 CEST 2010
On Thu, Oct 21, 2010 at 11:11:01AM -0500, Fabio Miranda wrote:
> I want to simulate a time consuming task on Erlang, let's say I want to execute 10 000 times the above line:
> How can I accomplish this on Erlang?
Er, is this an absolute beginners question, or is it
an intricate expert question that I am missing the point in?...
Assuming it is an absolute beginners question this might worth the reading:
And here is an uncompiled program for you:
repeat(Fun, N) when is_function(Fun, 0), is_integer(N), N >= 0 ->
if N > 0 ->
foo:repeat(fun () -> test_mnesia:busqueda(cars) end, 10000)
Another poster gave you an equivalent answer using a shell fun,
which is a wee bit more complicated but you it depends if
you want to do it from the shell or from a program.
If you want to collect the results another poster gave you a
suggestion a'la (allready in stdlib, just call):
[test_mnesia:busqueda(cars) || X <- lists:seq(1, 10000)]
You get the results in a list, and can do it either from
the shell or from a program.
/ Raimo Niskanen, Erlang/OTP, Ericsson AB
More information about the erlang-questions