34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
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/*
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Copyright 2009 Jason Moxham
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This file is part of the MPIR Library.
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The MPIR Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License, or (at
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your option) any later version.
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The MPIR Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the MPIR Library; see the file COPYING.LIB. If not, write
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to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "mpir.h"
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#include "gmp-impl.h"
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#include "longlong.h"
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void mpn_urandomm(mp_ptr rp, gmp_randstate_t rnd, mp_srcptr mp,mp_size_t n)
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{mp_size_t c,b;
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ASSERT(n>0);ASSERT_MPN(mp,n);ASSERT(mp[n-1]!=0);
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count_leading_zeros(c,mp[n-1]);
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c=GMP_LIMB_BITS-c;b=GMP_NUMB_BITS*(n-1)+c;
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do{_gmp_rand(rp,rnd,b);}while(mpn_cmp(rp,mp,n)>=0);
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return;}
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