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fds

0.1.0

0.2.1 0.2.0 0.1.0

Erlang/Elixir's missing fast / functional data structures

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fds src fds_deque.erl

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src/fds_deque.erl

-module(fds_deque).

new() -> {fds_ft:new(), 0}.

in(E,{Ft, Count}) -> {fds_ft:push(E, Ft), Count+1}.

out({_Ft, 0}) -> error;
out({Ft, Count}) ->
    {ok, E, NewFt} = fds_ft:pop(Ft),
    {E, {NewFt, Count-1}}.

count({_Ft, Count}) -> Count.

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