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/* latte_random.cpp -- Interface to random number generators
Copyright 2006 Matthias Koeppe
This file is part of LattE.
LattE is free software; you can redistribute it and/or modify it
under the terms of the version 2 of the GNU General Public License
as published by the Free Software Foundation.
LattE 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with LattE; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include <stdlib.h>
#include "latte_random.h"
void
seed_random_generator(unsigned int seed)
{
srand(seed);
// Also seed NTL's pseudo-random generator.
ZZ z_seed;
z_seed = seed;
SetSeed(z_seed);
}
int
uniform_random_number(int from, int to)
{
int range = to - from + 1;
return from + (int) ((double)range * rand()/(RAND_MAX+1.0));
}
ZZ
uniform_random_number(ZZ from, ZZ to)
{
ZZ range = to - from + 1;
return from + RandomBnd(range);
}
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