1 /* mpfr_set_sj -- set a MPFR number from a huge machine signed integer
2
3 Copyright 2004-2023 Free Software Foundation, Inc.
4 Contributed by the AriC and Caramba projects, INRIA.
5
6 This file is part of the GNU MPFR Library.
7
8 The GNU MPFR Library is free software; you can redistribute it and/or modify
9 it under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or (at your
11 option) any later version.
12
13 The GNU MPFR Library is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
16 License for more details.
17
18 You should have received a copy of the GNU Lesser General Public License
19 along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see
20 https://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
21 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
22
23 #define MPFR_NEED_INTMAX_H
24 #include "mpfr-impl.h"
25
26 #ifdef _MPFR_H_HAVE_INTMAX_T
27
28 int
mpfr_set_sj(mpfr_ptr x,intmax_t j,mpfr_rnd_t rnd)29 mpfr_set_sj (mpfr_ptr x, intmax_t j, mpfr_rnd_t rnd)
30 {
31 return mpfr_set_sj_2exp (x, j, 0, rnd);
32 }
33
34 int
mpfr_set_sj_2exp(mpfr_ptr x,intmax_t j,intmax_t e,mpfr_rnd_t rnd)35 mpfr_set_sj_2exp (mpfr_ptr x, intmax_t j, intmax_t e, mpfr_rnd_t rnd)
36 {
37 if (j >= 0)
38 return mpfr_set_uj_2exp (x, j, e, rnd);
39 else
40 {
41 int inex;
42 inex = mpfr_set_uj_2exp (x, - (uintmax_t) j, e, MPFR_INVERT_RND (rnd));
43 MPFR_CHANGE_SIGN (x);
44 return -inex;
45 }
46 }
47
48 #endif
49