modules/up/src/Core/gnu/Uniform.h

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FUNCTIONS

This source file includes following functions.
  1. Uniform
  2. Uniform
  3. low
  4. low
  5. high
  6. high

   1 // This may look like C code, but it is really -*- C++ -*-
   2 /* 
   3 Copyright (C) 1988 Free Software Foundation
   4     written by Dirk Grunwald (grunwald@cs.uiuc.edu)
   5 
   6 This file is part of the GNU C++ Library.  This library is free
   7 software; you can redistribute it and/or modify it under the terms of
   8 the GNU Library General Public License as published by the Free
   9 Software Foundation; either version 2 of the License, or (at your
  10 option) any later version.  This library is distributed in the hope
  11 that it will be useful, but WITHOUT ANY WARRANTY; without even the
  12 implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  13 PURPOSE.  See the GNU Library General Public License for more details.
  14 You should have received a copy of the GNU Library General Public
  15 License along with this library; if not, write to the Free Software
  16 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17 */
  18 #ifndef _Uniform_h
  19 #ifdef __GNUG__
  20 #pragma interface
  21 #endif
  22 #define _Uniform_h 1
  23 
  24 #include "gnu/Random.h"
  25 
  26 //
  27 //      The interval [lo..hi]
  28 // 
  29 
  30 class Uniform: public Random {
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  31     double pLow;
  32     double pHigh;
  33     double delta;
  34 public:
  35     Uniform(double low, double high, RNG *gen);
  36 
  37     double low();
  38     double low(double x);
  39     double high();
  40     double high(double x);
  41 
  42     virtual double operator()();
  43 };
  44 
  45 
  46 inline Uniform::Uniform(double low, double high, RNG *gen) : Random(gen)
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  47 {
  48     pLow = (low < high) ? low : high;
  49     pHigh = (low < high) ? high : low;
  50     delta = pHigh - pLow;
  51 }
  52 
  53 inline double Uniform::low() { return pLow; }
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  54 
  55 inline double Uniform::low(double x) {
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  56   double tmp = pLow;
  57   pLow = x;
  58   delta = pHigh - pLow;
  59   return tmp;
  60 }
  61 
  62 inline double Uniform::high() { return pHigh; }
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  63 
  64 inline double Uniform::high(double x) {
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  65   double tmp = pHigh;
  66   pHigh = x;
  67   delta = pHigh - pLow;
  68   return tmp;
  69 }
  70 
  71 #endif

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