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//
// Copyright (C) 2020 Gareth Jones, Glysade LLC
//
// @@ All Rights Reserved @@
// This file is part of the RDKit.
// The contents are covered by the terms of the BSD license
// which is included in the file license.txt, found at the root
// of the RDKit source tree.
//
#include "RandomUtil.h"
using std::mt19937;
using std::uniform_real_distribution;
namespace GarethUtil {
// RandomUtil::RandomUtil(uint32_t seed_) :
// realDistribution(0, 1){
// seed(seed_);
//}
RandomUtil::RandomUtil() : realDistribution(0, 1) {}
RandomUtil::~RandomUtil() {}
void RandomUtil::seed(uint32_t seed_) { rng.seed(seed_); }
double RandomUtil::normalRand() { return realDistribution(rng); }
int RandomUtil::randomInt(int bottom, int top) {
int step = rng() % (top - bottom);
return bottom + step;
}
bool RandomUtil::randomBoolean() { return normalRand() < 0.5; }
RandomUtil &RandomUtil::getInstance() {
static RandomUtil rng;
return rng;
}
} // namespace GarethUtil
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