Erlang Developer

Erlang developed by Joe Armstrong for Ericsson, is primarily a telecommunications language, that can give a high degree of stability to systems, and is often used where 5 nines (99.999%) uptime is required.

In sequential programming, Erlang is primarily a functional language, which allows for the mathematical representation and proof of a function. Functional coding tends to make use of recursive technique, that allows for terse source code. A functional style of programming also tends to reduce errors.

Erlang shines when concurrency is required, this can be in a distributed fashion by harnessing many hosts, in the efficient use of multi core CPUs, or systems with many CPUs. The actor model of concurrency is used extensively to achieve fault tolerant distributed systems, with lite weight processes inside of virtual machines providing a simpler way of understanding concurrent systems.

Erlang Uses

Erlang Example Code

%-----------------------------------------------------------
%          _                          _
%  ___ _ _| |__ _ _ _  __ _   ___ _ _| |
% / -_) '_| / _` | ' \/ _` |_/ -_) '_| |
% \___|_| |_\__,_|_||_\__, (_)___|_| |_|
%                     |___/
%
%-----------------------------------------------------------
% File      : erlang.erl
% Author    : Richard Lewis
% Project   : /mnt/webbeastie/proj/poisedsolutions/lib/code/
% Syntax    : erlang
% Date      : Wed 15 Jul 2009
% Copyright : Richard Lewis 2009
%-----------------------------------------------------------
% erlang.erl - Example Exrlang Code
%-----------------------------------------------------------

-module( caesar_encrypt ).
-export( [ encrypt/2 ] ).
%-----------------------------------------------------------

encrypt( Shift, Text ) ->
    % encrypt text by shift - caesar cipher

    S = Shift rem 24,

    [ check( C + S )
        || C <- Text, C >= 97 andalso C =< 122 ].
%-----------------------------------------------------------

check( C ) ->
    % check for roll round

    Alphabet_length = 26,

    if
        C > 122 ->
            C2 = C - Alphabet_length;

        C < 97 ->
            C2 = C + Alphabet_length;

        true ->
            C2 = C
    end,

    C2.
%-----------------------------------------------------------

Erlang Development Services Poised Solutions

Functional Languages	Haskell Developer

Application Development	Daemon Development	Ecommerce Development

Erlang Resources

Erlang Resources

• Erlang Links
• Erlang Books