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Diffstat (limited to 'gnu/lib/libg++/include/NegExp.h')
-rw-r--r-- | gnu/lib/libg++/include/NegExp.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/gnu/lib/libg++/include/NegExp.h b/gnu/lib/libg++/include/NegExp.h new file mode 100644 index 0000000..b96f913 --- /dev/null +++ b/gnu/lib/libg++/include/NegExp.h @@ -0,0 +1,55 @@ +// 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 the GNU C++ Library. This library is free +software; you can redistribute it and/or modify it under the terms of +the GNU Library General Public License as published by the Free +Software Foundation; either version 2 of the License, or (at your +option) any later version. This library 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 Library General Public License for more details. +You should have received a copy of the GNU Library General Public +License along with this library; if not, write to the Free Software +Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. +*/ +#ifndef _NegativeExpntl_h +#ifdef __GNUG__ +#pragma interface +#endif +#define _NegativeExpntl_h 1 + + +// +// Negative Exponential Random Numbers +// +// + +#include <Random.h> + +class NegativeExpntl: public Random { +protected: + double pMean; +public: + NegativeExpntl(double xmean, RNG *gen); + double mean(); + double mean(double x); + + virtual double operator()(); +}; + + +inline NegativeExpntl::NegativeExpntl(double xmean, RNG *gen) +: Random(gen) { + pMean = xmean; +} + +inline double NegativeExpntl::mean() { return pMean; } +inline double NegativeExpntl::mean(double x) { + double t = pMean; pMean = x; + return t; +} + +#endif |