1 /* mpc_sub_fr -- Substract a floating-point number to the real part of a
4 Copyright (C) 2008, 2009, 2011 INRIA
6 This file is part of GNU MPC.
8 GNU MPC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU Lesser General Public License as published by the
10 Free Software Foundation; either version 3 of the License, or (at your
11 option) any later version.
13 GNU MPC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
15 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
18 You should have received a copy of the GNU Lesser General Public License
19 along with this program. If not, see http://www.gnu.org/licenses/ .
24 /* return 0 iff both the real and imaginary parts are exact */
26 mpc_sub_fr (mpc_ptr a
, mpc_srcptr b
, mpfr_srcptr c
, mpc_rnd_t rnd
)
30 inex_re
= mpfr_sub (mpc_realref(a
), mpc_realref(b
), c
, MPC_RND_RE(rnd
));
31 inex_im
= mpfr_set (mpc_imagref(a
), mpc_imagref(b
), MPC_RND_IM(rnd
));
33 return MPC_INEX(inex_re
, inex_im
);