// -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 4 -*-
//
// runif.h: Rcpp R/C++ interface class library --
//
// Copyright (C) 2010 - 2013 Douglas Bates, Dirk Eddelbuettel and Romain Francois
//
// This file is part of Rcpp.
//
// Rcpp is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 2 of the License, or
// (at your option) any later version.
//
// Rcpp 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 Rcpp.  If not, see <http://www.gnu.org/licenses/>.

#ifndef Rcpp__stats__random_runif_h
#define Rcpp__stats__random_runif_h

namespace Rcpp {
	namespace stats {


		class UnifGenerator : public ::Rcpp::Generator<double> {
		public:

			UnifGenerator( double min_ = 0.0, double max_ = 1.0) :
				min(min_), diff(max_ - min_) {}

			inline double operator()() const {
				double u;
				do {u = unif_rand();} while (u <= 0 || u >= 1);
				return min + diff * u;
			}

		private:
			double min;
			double diff ;
		} ;


		class UnifGenerator__0__1 : public ::Rcpp::Generator<double> {
		public:

			UnifGenerator__0__1() {}

			inline double operator()() const {
				double u;
				do {u = unif_rand();} while (u <= 0 || u >= 1);
				return u;
			}
		} ;
	} // stats

} // Rcpp

#endif
