/* mpc_fr_sub -- Substract a complex number from a floating-point number. Copyright (C) 2008, 2009, 2011, 2012 INRIA This file is part of GNU MPC. GNU MPC 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 3 of the License, or (at your option) any later version. GNU MPC 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 this program. If not, see http://www.gnu.org/licenses/ . */ #include "mpc-impl.h" /* return 0 iff both the real and imaginary parts are exact */ int mpc_fr_sub (mpc_ptr a, mpfr_srcptr b, mpc_srcptr c, mpc_rnd_t rnd) { int inex_re, inex_im; inex_re = mpfr_sub (mpc_realref (a), b, mpc_realref (c), MPC_RND_RE (rnd)); inex_im = mpfr_neg (mpc_imagref (a), mpc_imagref (c), MPC_RND_IM (rnd)); return MPC_INEX(inex_re, inex_im); }