|
Packit |
5c3484 |
/* mpz_realloc2 -- change allocated data size.
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
Copyright 2001, 2002, 2008 Free Software Foundation, Inc.
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
This file is part of the GNU MP Library.
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
The GNU MP Library is free software; you can redistribute it and/or modify
|
|
Packit |
5c3484 |
it under the terms of either:
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
* the GNU Lesser General Public License as published by the Free
|
|
Packit |
5c3484 |
Software Foundation; either version 3 of the License, or (at your
|
|
Packit |
5c3484 |
option) any later version.
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
or
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
* the GNU General Public License as published by the Free Software
|
|
Packit |
5c3484 |
Foundation; either version 2 of the License, or (at your option) any
|
|
Packit |
5c3484 |
later version.
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
or both in parallel, as here.
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
The GNU MP Library is distributed in the hope that it will be useful, but
|
|
Packit |
5c3484 |
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
Packit |
5c3484 |
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
Packit |
5c3484 |
for more details.
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
You should have received copies of the GNU General Public License and the
|
|
Packit |
5c3484 |
GNU Lesser General Public License along with the GNU MP Library. If not,
|
|
Packit |
5c3484 |
see https://www.gnu.org/licenses/. */
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
#include <stdlib.h>
|
|
Packit |
5c3484 |
#include <stdio.h>
|
|
Packit |
5c3484 |
#include "gmp.h"
|
|
Packit |
5c3484 |
#include "gmp-impl.h"
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
void
|
|
Packit |
5c3484 |
mpz_realloc2 (mpz_ptr m, mp_bitcnt_t bits)
|
|
Packit |
5c3484 |
{
|
|
Packit |
5c3484 |
mp_size_t new_alloc;
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
bits -= (bits != 0); /* Round down, except if 0 */
|
|
Packit |
5c3484 |
new_alloc = 1 + bits / GMP_NUMB_BITS;
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
if (sizeof (unsigned long) > sizeof (int)) /* param vs _mp_size field */
|
|
Packit |
5c3484 |
{
|
|
Packit |
5c3484 |
if (UNLIKELY (new_alloc > INT_MAX))
|
|
Packit |
5c3484 |
{
|
|
Packit |
5c3484 |
fprintf (stderr, "gmp: overflow in mpz type\n");
|
|
Packit |
5c3484 |
abort ();
|
|
Packit |
5c3484 |
}
|
|
Packit |
5c3484 |
}
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
PTR(m) = __GMP_REALLOCATE_FUNC_LIMBS (PTR(m), ALLOC(m), new_alloc);
|
|
Packit |
5c3484 |
ALLOC(m) = new_alloc;
|
|
Packit |
5c3484 |
|
|
Packit |
5c3484 |
/* Don't create an invalid number; if the current value doesn't fit after
|
|
Packit |
5c3484 |
reallocation, clear it to 0. */
|
|
Packit |
5c3484 |
if (ABSIZ(m) > new_alloc)
|
|
Packit |
5c3484 |
SIZ(m) = 0;
|
|
Packit |
5c3484 |
}
|