mirror of https://github.com/macssh/macssh.git
63 lines
1.6 KiB
C
Executable File
63 lines
1.6 KiB
C
Executable File
/* mpfr_set_prec -- reset the precision of a floating-point number
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Copyright (C) 1999 PolKA project, Inria Lorraine and Loria
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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 Library General Public License as published by
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the Free Software Foundation; either version 2 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 Library General Public
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License for more details.
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You should have received a copy of the GNU Library 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., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA. */
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#include <stdio.h>
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#include "gmp.h"
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#include "gmp-impl.h"
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#include "mpfr.h"
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void
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#if __STDC__
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mpfr_set_prec (mpfr_t x, unsigned long int p)
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#else
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mpfr_set_prec (x, p)
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mpfr_t x;
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unsigned long int p;
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#endif
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{
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unsigned long xsize;
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if (p==0) {
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printf("*** cannot set precision to 0 bits\n"); exit(1);
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}
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xsize = (p - 1)/BITS_PER_MP_LIMB + 1; /* new limb size */
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if (xsize > ABSSIZE(x)) {
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x -> _mp_d = (mp_ptr) (*_mp_reallocate_func)
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(x -> _mp_d, ABSSIZE(x)*BYTES_PER_MP_LIMB, xsize * BYTES_PER_MP_LIMB);
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SIZE(x) = xsize; /* new number of allocated limbs */
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}
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x -> _mp_prec = p;
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}
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unsigned long int
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#if __STDC__
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mpfr_get_prec (mpfr_t x)
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#else
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mpfr_get_prec (x)
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mpfr_t x;
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#endif
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{
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return x -> _mp_prec;
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}
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