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A simple example of an Erlang NIF for creating mutable variables
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wat is an example of how to use the Erlang native implemented functions. Since nif's already decrease the reliability of the erlang VM, why not push the boundaries a bit further and create a mutable data store? USAGE Erlang R13B03 (erts-5.7.4) [source] [smp:2:2] [rq:2] [async-threads:0] [kernel-poll:false] Eshell V5.7.4 (abort with ^G) 1> wat:init(1024). ok 2> wat:get(20). 0 3> wat:set(20,5). 5 4> wat:get(20). 5 5> wat:add(20,10). 15 6> wat:get(20). 15 7> wat:init(10). ok 8> wat:get(20). {error,out_of_bounds} 9>
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