1 /* mpfr_add_si -- add a floating-point number with a machine integer
2 mpfr_sub_si -- sub a floating-point number with a machine integer
3 mpfr_si_sub -- sub a machine number with a floating-point number
5 Copyright 2004-2015 Free Software Foundation, Inc.
6 Contributed by the AriC and Caramel projects, INRIA.
8 This file is part of the GNU MPFR Library.
10 The GNU MPFR Library is free software; you can redistribute it and/or modify
11 it under the terms of the GNU Lesser General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or (at your
13 option) any later version.
15 The GNU MPFR Library is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
17 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
18 License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see
22 http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
23 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
25 #include "mpfr-impl.h"
28 mpfr_add_si (mpfr_ptr y
, mpfr_srcptr x
, long int u
, mpfr_rnd_t rnd_mode
)
31 return mpfr_add_ui (y
, x
, u
, rnd_mode
);
33 return mpfr_sub_ui (y
, x
, -u
, rnd_mode
);
37 mpfr_sub_si (mpfr_ptr y
, mpfr_srcptr x
, long int u
, mpfr_rnd_t rnd_mode
)
40 return mpfr_sub_ui (y
, x
, u
, rnd_mode
);
42 return mpfr_add_ui (y
, x
, -u
, rnd_mode
);
46 mpfr_si_sub (mpfr_ptr y
, long int u
, mpfr_srcptr x
, mpfr_rnd_t rnd_mode
)
49 return mpfr_ui_sub (y
, u
, x
, rnd_mode
);
52 int res
= -mpfr_add_ui (y
, x
, -u
, MPFR_INVERT_RND (rnd_mode
));