Re: foreign frame and install_

It appears that one can initialize functor_t constants from install_*. But
if one creates a term_t through PL_new_term_ref and then unify it with
PL_unify_functor the binding is not kept after one exits install_. That is
fine but it is a detail that one needs to learn when working with the FFI.


On Tue, Feb 4, 2014 at 2:00 PM, Haitao Zhang <[email protected]> wrote:

> Previously I asked the following question:
> On Tue, Feb 4, 2014 at 12:59 AM, Haitao Zhang <[email protected]> wrote:
>
>> Incidentally what is the best way to keep a term like FUNCTOR_literal1
>> that is really a constant across foreign calls?
>>
>
> By poking around the swipl source code a little it seems that the answer
> is to do all the initializations in the install_(module) function.
> Presumably bindings created inside the install_ functions will not be
> discarded upon exit unlike regular foreign function calls.
>
> Haitao
>
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