1 /* mpz_realloc2 -- change allocated data size.
3 Copyright 2001, 2002, 2008 Free Software Foundation, Inc.
5 This file is part of the GNU MP Library.
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.
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.
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/. */
26 mpz_realloc2 (mpz_ptr m
, mp_bitcnt_t bits
)
30 bits
-= (bits
!= 0); /* Round down, except if 0 */
31 new_alloc
= 1 + bits
/ GMP_NUMB_BITS
;
33 if (sizeof (unsigned long) > sizeof (int)) /* param vs _mp_size field */
35 if (UNLIKELY (new_alloc
> INT_MAX
))
37 fprintf (stderr
, "gmp: overflow in mpz type\n");
42 PTR(m
) = __GMP_REALLOCATE_FUNC_LIMBS (PTR(m
), ALLOC(m
), new_alloc
);
45 /* Don't create an invalid number; if the current value doesn't fit after
46 reallocation, clear it to 0. */
47 if (ABSIZ(m
) > new_alloc
)