From: Rob Browning <rlb@defaultvalue.org>
Cc: guile-devel@gnu.org
Subject: Re: gmp issues (long)
Date: Tue, 25 Feb 2003 17:23:17 -0600 [thread overview]
Message-ID: <874r6sq716.fsf@raven.i.defaultvalue.org> (raw)
In-Reply-To: <87of506k2y.fsf@zagadka.ping.de> (Marius Vollmer's message of "26 Feb 2003 00:01:41 +0100")
Marius Vollmer <mvo@zagadka.de> writes:
> Possibly, but we would have to break into the scm_double_cell
> abstraction. I.e., we should _not_ provide a function that creates an
> unintialized double cell, but we might add another function that
> creates a double cell and simultaneously initializes it as a mpz_t.
That's probably the easiest thing, though given the fact that we can't
just skip the initialization, for now it's probably best to just leave
any optimizations for later since there will probably also be times
where we'll want to
SCM z = scm_double_cell (bignum_tag, 0, 0, 0);
mpz_init_set (SCM_CELL_ADDR_1 (z), SCM_I_BIG_MPZ (x));
or
mpz_init_set_si (SCM_CELL_ADDR_1 (z), x);
etc.
--
Rob Browning
rlb @defaultvalue.org, @linuxdevel.com, and @debian.org
Previously @cs.utexas.edu
GPG starting 2002-11-03 = 14DD 432F AE39 534D B592 F9A0 25C8 D377 8C7E 73A4
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next prev parent reply other threads:[~2003-02-25 23:23 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-24 22:29 gmp issues (long) Rob Browning
2003-02-25 20:54 ` Marius Vollmer
2003-02-25 22:10 ` Rob Browning
2003-02-25 22:32 ` Marius Vollmer
2003-02-25 22:50 ` Rob Browning
2003-02-25 23:01 ` Marius Vollmer
2003-02-25 23:23 ` Rob Browning [this message]
2003-02-26 22:07 ` Kevin Ryde
[not found] <E18ndhx-0007Cm-00@monty-python.gnu.org>
2003-02-25 19:32 ` Stephen Compall
2003-02-25 20:08 ` Rob Browning
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