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- // This may look like C code, but it is really -*- C++ -*-
- /*
- Copyright (C) 1988 Free Software Foundation
- written by Dirk Grunwald (grunwald@cs.uiuc.edu)
-
- This file is part of GNU CC.
-
- GNU CC is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY. No author or distributor
- accepts responsibility to anyone for the consequences of using it
- or for whether it serves any particular purpose or works at all,
- unless he says so in writing. Refer to the GNU CC General Public
- License for full details.
-
- Everyone is granted permission to copy, modify and redistribute
- GNU CC, but only under the conditions described in the
- GNU CC General Public License. A copy of this license is
- supposed to have been given to you along with GNU CC so you
- can know your rights and responsibilities. It should be in a
- file named COPYING. Among other things, the copyright notice
- and this notice must be preserved on all copies.
- */
- #ifndef _DiscreteUniform_h
- #ifdef __GNUG__
- #pragma once
- #pragma interface
- #endif
- #define _DiscreteUniform_h 1
-
- #include <_Random.h>
-
- //
- // The interval [lo..hi)
- //
-
- class DiscreteUniform: public Random {
- long pLow;
- long pHigh;
- double delta;
- public:
- DiscreteUniform(long low, long high, RNG *gen);
-
- long low();
- long low(long x);
- long high();
- long high(long x);
-
- virtual double operator()();
- };
-
- #if defined(__OPTIMIZE__) || defined(USE_LIBGXX_INLINES)
-
- inline DiscreteUniform::DiscreteUniform(long low, long high, RNG *gen) : (gen)
- {
- pLow = (low < high) ? low : high;
- pHigh = (low < high) ? high : low;
- delta = (pHigh - pLow) + 1;
- }
-
- inline long DiscreteUniform::low() { return pLow; }
-
- inline long DiscreteUniform::low(long x) {
- long tmp = pLow;
- pLow = x;
- delta = (pHigh - pLow) + 1;
- return tmp;
- }
-
- inline long DiscreteUniform::high() { return pHigh; }
-
- inline long DiscreteUniform::high(long x) {
- long tmp = pHigh;
- pHigh = x;
- delta = (pHigh - pLow) + 1;
- return tmp;
- }
-
- #endif
- #endif
-