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Annotation of OpenXM_contrib/gmp/mpz/iset_si.c, Revision 1.1.1.3

1.1.1.3 ! ohara       1: /* mpz_init_set_si(dest,val) -- Make a new multiple precision in DEST and
        !             2:    assign VAL to the new number.
1.1       maekawa     3:
1.1.1.3 ! ohara       4: Copyright 1991, 1993, 1994, 1995, 2000, 2001, 2002 Free Software Foundation,
        !             5: Inc.
1.1       maekawa     6:
                      7: This file is part of the GNU MP Library.
                      8:
                      9: The GNU MP Library is free software; you can redistribute it and/or modify
1.1.1.2   maekawa    10: it under the terms of the GNU Lesser General Public License as published by
                     11: the Free Software Foundation; either version 2.1 of the License, or (at your
1.1       maekawa    12: option) any later version.
                     13:
                     14: The GNU MP Library is distributed in the hope that it will be useful, but
                     15: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
1.1.1.2   maekawa    16: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
1.1       maekawa    17: License for more details.
                     18:
1.1.1.2   maekawa    19: You should have received a copy of the GNU Lesser General Public License
1.1       maekawa    20: along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
                     21: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
                     22: MA 02111-1307, USA. */
                     23:
                     24: #include "gmp.h"
                     25: #include "gmp-impl.h"
                     26:
                     27: void
1.1.1.3 ! ohara      28: mpz_init_set_si (mpz_ptr dest, signed long int val)
1.1       maekawa    29: {
1.1.1.3 ! ohara      30:   mp_size_t size;
        !            31:   mp_limb_t vl;
        !            32:
        !            33:   dest->_mp_alloc = 1;
        !            34:   dest->_mp_d = (mp_ptr) (*__gmp_allocate_func) (BYTES_PER_MP_LIMB);
        !            35:
        !            36:   vl = (mp_limb_t) (unsigned long int) (val >= 0 ? val : -val);
        !            37:
        !            38:   dest->_mp_d[0] = vl & GMP_NUMB_MASK;
        !            39:   size = vl != 0;
        !            40:
        !            41: #if GMP_NAIL_BITS != 0
        !            42:   if (vl > GMP_NUMB_MAX)
1.1       maekawa    43:     {
1.1.1.3 ! ohara      44:       MPZ_REALLOC (dest, 2);
        !            45:       dest->_mp_d[1] = vl >> GMP_NUMB_BITS;
        !            46:       size = 2;
1.1       maekawa    47:     }
1.1.1.3 ! ohara      48: #endif
        !            49:
        !            50:   dest->_mp_size = val >= 0 ? size : -size;
1.1       maekawa    51: }