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Annotation of OpenXM_contrib/gmp/mpn/generic/random.c, Revision 1.1.1.1

1.1       maekawa     1: /* mpn_random -- Generate random numbers.
                      2:
                      3: Copyright (C) 1996, 1997, 2000 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
                      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
                     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
                     14: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
                     15: License for more details.
                     16:
                     17: You should have received a copy of the GNU Lesser General Public License
                     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: #include "urandom.h"
                     25:
                     26: void
                     27: #if __STDC__
                     28: mpn_random (mp_ptr res_ptr, mp_size_t size)
                     29: #else
                     30: mpn_random (res_ptr, size)
                     31:      mp_ptr res_ptr;
                     32:      mp_size_t size;
                     33: #endif
                     34: {
                     35:   mp_size_t i;
                     36:
                     37:   for (i = 0; i < size; i++)
                     38:     res_ptr[i] = urandom ();
                     39:
                     40:   /* Make sure the most significant limb is non-zero.  */
                     41:   while (res_ptr[size - 1] == 0)
                     42:     res_ptr[size - 1] = urandom ();
                     43: }