OpenXM_contrib/gmp/mpz/realloc.c - diff

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version 1.1.1.2, 2000/09/09 14:12:56

version 1.1.1.3, 2003/08/25 16:06:33

Line 1

/* _mpz_realloc -- make the mpz_t have NEW_SIZE digits allocated.

/* _mpz_realloc -- make the mpz_t have NEW_ALLOC digits allocated.

This file is part of the GNU MP Library.

Line 23 MA 02111-1307, USA. */

#include "gmp-impl.h"

void *

#if __STDC__

_mpz_realloc (mpz_ptr m, mp_size_t new_alloc)

_mpz_realloc (mpz_ptr m, mp_size_t new_size)

#else

_mpz_realloc (m, new_size)

mpz_ptr m;

mp_size_t new_size;

#endif

{

mp_ptr mp;

/* Never allocate zero space. */

if (new_size == 0)

new_alloc = MAX (new_alloc, 1);

new_size = 1;

m->_mp_d = (mp_ptr) (*_mp_reallocate_func) (m->_mp_d,

mp = __GMP_REALLOCATE_FUNC_LIMBS (PTR(m), ALLOC(m), new_alloc);

m->_mp_alloc * BYTES_PER_MP_LIMB,

PTR(m) = mp;

new_size * BYTES_PER_MP_LIMB);

ALLOC(m) = new_alloc;

m->_mp_alloc = new_size;

#if 0

/* Don't create an invalid number; if the current value doesn't fit after

/* This might break some code that reads the size field after

reallocation, clear it to 0. */

reallocation, in the case the reallocated destination and a

if (ABSIZ(m) > new_alloc)

source argument are identical. */

SIZ(m) = 0;

if (ABS (m->_mp_size) > new_size)

m->_mp_size = 0;

#endif

return (void *) m->_mp_d;

return (void *) mp;

}