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Annotation of OpenXM_contrib/gmp/mpz/realloc.c, Revision 1.1.1.2

1.1       maekawa     1: /* _mpz_realloc -- make the mpz_t have NEW_SIZE digits allocated.
                      2:
                      3: Copyright (C) 1991, 1993, 1994, 1995 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
1.1.1.2 ! maekawa     8: it under the terms of the GNU Lesser General Public License as published by
        !             9: the Free Software Foundation; either version 2.1 of the License, or (at your
1.1       maekawa    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
1.1.1.2 ! maekawa    14: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
1.1       maekawa    15: License for more details.
                     16:
1.1.1.2 ! maekawa    17: You should have received a copy of the GNU Lesser General Public License
1.1       maekawa    18: along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
                     19: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
                     20: MA 02111-1307, USA. */
                     21:
                     22: #include "gmp.h"
                     23: #include "gmp-impl.h"
                     24:
                     25: void *
                     26: #if __STDC__
                     27: _mpz_realloc (mpz_ptr m, mp_size_t new_size)
                     28: #else
                     29: _mpz_realloc (m, new_size)
                     30:      mpz_ptr m;
                     31:      mp_size_t new_size;
                     32: #endif
                     33: {
                     34:   /* Never allocate zero space. */
                     35:   if (new_size == 0)
                     36:     new_size = 1;
                     37:
                     38:   m->_mp_d = (mp_ptr) (*_mp_reallocate_func) (m->_mp_d,
                     39:                                              m->_mp_alloc * BYTES_PER_MP_LIMB,
                     40:                                              new_size * BYTES_PER_MP_LIMB);
                     41:   m->_mp_alloc = new_size;
                     42:
                     43: #if 0
                     44:   /* This might break some code that reads the size field after
                     45:      reallocation, in the case the reallocated destination and a
                     46:      source argument are identical.  */
                     47:   if (ABS (m->_mp_size) > new_size)
                     48:     m->_mp_size = 0;
                     49: #endif
                     50:
                     51:   return (void *) m->_mp_d;
                     52: }