From c248c909426477c9bab3983630453c32242c3db1 Mon Sep 17 00:00:00 2001 From: thevenyp Date: Fri, 18 Jul 2008 10:07:56 +0000 Subject: Add new functions mpc_fr_sub, mpc_sub_fr, mpc_set_fr, and mpc_get_version. git-svn-id: svn://scm.gforge.inria.fr/svn/mpc/trunk@162 211d60ee-9f03-0410-a15a-8952a2c7a4e4 --- src/sub_fr.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 src/sub_fr.c (limited to 'src/sub_fr.c') diff --git a/src/sub_fr.c b/src/sub_fr.c new file mode 100644 index 0000000..efbf4d6 --- /dev/null +++ b/src/sub_fr.c @@ -0,0 +1,37 @@ +/* mpc_sub_fr -- Substract a floating-point number to the real part of a + complex number. + +Copyright (C) 2008 Philippe Th\'eveny + +This file is part of the MPC Library. + +The MPC Library is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or (at your +option) any later version. + +The MPC Library is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public +License for more details. + +You should have received a copy of the GNU Lesser General Public License +along with the MPC Library; see the file COPYING.LIB. If not, write to +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, +MA 02111-1307, USA. */ + +#include "gmp.h" +#include "mpfr.h" +#include "mpc.h" + +/* return 0 iff both the real and imaginary parts are exact */ +int +mpc_sub_fr (mpc_ptr a, mpc_srcptr b, mpfr_srcptr c, mpc_rnd_t rnd) +{ + int inex_re, inex_im; + + inex_re = mpfr_sub (MPC_RE(a), MPC_RE(b), c, MPC_RND_RE(rnd)); + inex_im = mpfr_set (MPC_IM(a), MPC_IM(b), MPC_RND_IM(rnd)); + + return MPC_INEX(inex_re, inex_im); +} -- cgit v1.2.1