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Diffstat (limited to 'rts/gmp/mpn/generic/random.c')
-rw-r--r-- | rts/gmp/mpn/generic/random.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/rts/gmp/mpn/generic/random.c b/rts/gmp/mpn/generic/random.c new file mode 100644 index 0000000000..dea4e20e56 --- /dev/null +++ b/rts/gmp/mpn/generic/random.c @@ -0,0 +1,43 @@ +/* mpn_random -- Generate random numbers. + +Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc. + +This file is part of the GNU MP Library. + +The GNU MP Library is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or (at your +option) any later version. + +The GNU MP Library is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public +License for more details. + +You should have received a copy of the GNU Lesser General Public License +along with the GNU MP Library; see the file COPYING.LIB. If not, write to +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, +MA 02111-1307, USA. */ + +#include "gmp.h" +#include "gmp-impl.h" +#include "urandom.h" + +void +#if __STDC__ +mpn_random (mp_ptr res_ptr, mp_size_t size) +#else +mpn_random (res_ptr, size) + mp_ptr res_ptr; + mp_size_t size; +#endif +{ + mp_size_t i; + + for (i = 0; i < size; i++) + res_ptr[i] = urandom (); + + /* Make sure the most significant limb is non-zero. */ + while (res_ptr[size - 1] == 0) + res_ptr[size - 1] = urandom (); +} |