On Fri, Aug 13, 2010 at 11:35 AM, Gabriel Dos Reis <g...@cs.tamu.edu> wrote:
> So, I am wondering why ECL is making that distinction? That is, why does > ECL need to distinguish 'long' from ECL_FIXNUM_TYPE? Should not > the distinction between GMP_LIMB_BITS vs. FIXNUM_BITS be sufficient? > Gabriel, I think you have found a major problem. GMP only exports routines to convert from gmp to long and int, not to long long. Since I did not want to tinker with GMP's internals, I almost never manipulated limbs myself. I have not the faintest idea of what choices GMP takes when facing an LLP platform. I believe the Sage group switched from GMP to MPIR for this precise reason, but it also poses a significant problem for ECL because we will have to have a look at the cl_fixnum -> gmp conversions scattered throughout the code, which currently rely on GMP's mpz_set_si function and this is taking LONG not LONG LONG!!! Juanjo -- Instituto de Física Fundamental, CSIC c/ Serrano, 113b, Madrid 28006 (Spain) http://juanjose.garciaripoll.googlepages.com
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