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99d8158635
git-svn-id: file:///srv/svn/repos/haiku/buildtools/trunk@29042 a95241bf-73f2-0310-859d-f6bbb57e9c96
66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
/* mpfr_set_sj -- set a MPFR number from a huge machine signed integer
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Copyright 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
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Contributed by the Arenaire and Cacao projects, INRIA.
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This file is part of the MPFR Library.
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The MPFR Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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The MPFR Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the MPFR Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#if HAVE_CONFIG_H
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# include "config.h" /* for a build within gmp */
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#endif
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/* The ISO C99 standard specifies that in C++ implementations the
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INTMAX_MAX, ... macros should only be defined if explicitly requested. */
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#if defined __cplusplus
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# define __STDC_LIMIT_MACROS
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# define __STDC_CONSTANT_MACROS
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#endif
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#ifdef HAVE_STDINT_H
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# include <stdint.h>
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#endif
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#ifdef HAVE_INTTYPES_H
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# include <inttypes.h>
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#endif
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#include "mpfr-impl.h"
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#ifdef _MPFR_H_HAVE_INTMAX_T
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int
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mpfr_set_sj (mpfr_t x, intmax_t j, mp_rnd_t rnd)
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{
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return mpfr_set_sj_2exp (x, j, 0, rnd);
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}
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int
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mpfr_set_sj_2exp (mpfr_t x, intmax_t j, intmax_t e, mp_rnd_t rnd)
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{
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if (j>=0)
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return mpfr_set_uj_2exp (x, j, e, rnd);
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else
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{
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int inex;
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inex = mpfr_set_uj_2exp (x, - (uintmax_t) j, e, MPFR_INVERT_RND (rnd));
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MPFR_CHANGE_SIGN (x);
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return -inex;
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}
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}
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#endif
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