https://github.com/msantos/wat

A simple example of an Erlang NIF for creating mutable variables
https://github.com/msantos/wat

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A simple example of an Erlang NIF for creating mutable variables

• Host: GitHub
• URL: https://github.com/msantos/wat
• Owner: msantos
• Created: 2009-11-28T15:00:23.000Z (over 15 years ago)
• Default Branch: master
• Last Pushed: 2010-08-21T14:01:41.000Z (almost 15 years ago)
• Last Synced: 2024-12-13T03:34:10.593Z (6 months ago)
• Language: C
• Homepage: http://listincomprehension.com/2009/11/simple-mutable-variables-using-erlang.html
• Size: 86.9 KB
• Stars: 4
• Watchers: 4
• Forks: 5
• Open Issues: 0
• Metadata Files:
  • Readme: README

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README

        

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>