RosettaCodeData/Task/Loops-For-with-a-specified-step/Erlang/loops-for-with-a-specified-step.erl
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2013-10-27 22:24:23 +00:00

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Erlang

%% Implemented by Arjun Sunel
%% for_loop/4 by Bengt Kleberg.
-module(loop_step).
-export([main/0, for_loop/1, for_loop/4]).
% This Erlang code for "For Loop" is equivalent to: " for (i=start; i<end ; i=i+2){ printf("* ");} " in C language.
main() ->
for_loop(1).
for_loop( N ) ->
for_loop( N, 4, 2, fun() -> io:fwrite("* ") end ).
for_loop( I, End, Step, Do ) when N < End ->
Do(),
for_loop( I+Step, End, Step, Do );
for_loop( _I, _End, _Step, _Do ) -> ok.