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Re: [PATCH] Configure GMP to use GC allocation functions, remove bignum

From: Andy Wingo
Subject: Re: [PATCH] Configure GMP to use GC allocation functions, remove bignum finalizers
Date: Fri, 02 Dec 2011 19:12:29 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.3 (gnu/linux)


On Fri 02 Dec 2011 18:02, address@hidden (Ludovic Courtès) writes:

> I guess scm_gc_register_collectable_memory could be
> changed to just call it, ignoring its first argument?


>> I made scm_realloc call scm_gc_register_allocation.  I also installed
>> custom gmp allocators that call scm_malloc and friends
> I was about to say “we can’t do that in 2.0!”, but then saw your
> scm_install_gmp_memory_functions trick.  Cool!  :-)

Did you also see that we used to^H^H still `free' the memory returned
from mpz_get_str?  That means that in practice, since the 1.8 days we
did not support other allocators for mp_memory_functions.  For that
reason I defaulted scm_install_gmp_memory_functions to 1.  I will fix
the other instance of scm_take_locale_string.

> Could you make it SCM_INTERNAL instead of SCM_API?

Sure, but you don't want to allow users to set it?

> Could you check how it affects gc-benchmarks/?  :-)

Are there tests for numbers there?  This change would only affect that,
I think.



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