xref: /dragonfly/contrib/gmp/mpf/init2.c (revision 6e278935)
1 /* mpf_init2() -- Make a new multiple precision number with value 0.
2 
3 Copyright 1993, 1994, 1995, 2000, 2001, 2004 Free Software Foundation, Inc.
4 
5 This file is part of the GNU MP Library.
6 
7 The GNU MP Library is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or (at your
10 option) any later version.
11 
12 The GNU MP Library is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
15 License for more details.
16 
17 You should have received a copy of the GNU Lesser General Public License
18 along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.  */
19 
20 #include "gmp.h"
21 #include "gmp-impl.h"
22 
23 void
24 mpf_init2 (mpf_ptr r, mp_bitcnt_t prec_in_bits)
25 {
26   mp_size_t prec;
27 
28   prec = __GMPF_BITS_TO_PREC (prec_in_bits);
29   r->_mp_size = 0;
30   r->_mp_exp = 0;
31   r->_mp_prec = prec;
32   r->_mp_d = (mp_ptr) (*__gmp_allocate_func) ((prec + 1) * BYTES_PER_MP_LIMB);
33 }
34