[erlang-questions] old module

Joe Armstrong <>
Mon Oct 8 09:09:10 CEST 2012


  erlang:check_old_code(Module) -> boolean()

              Types:

                 Module = atom()

              Returns true if the Module has old code, and false otherwise.

(How did I find this? -
   > cd <src>/lib/kernel/src
   > grep purge *.erl

  I found it around line 1401 of code_server.erl

  (it's also in the erlang manual page :-)

)


/Joe



On Mon, Oct 8, 2012 at 8:56 AM, József Bérces
<> wrote:
> Is there any way to tell if an old version of the module already exists? The
> return value of code:delete/1 tells that, but that is too late, I would like
> to know in advance that the module needs purge.
>
> Thanks,
> Jozsef
>
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> 
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