summaryrefslogtreecommitdiffstats
path: root/libg++/libg++/src/Erlang.cc
blob: 5a73021f10f350e4cf8e790342919266eec95699 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
/* 
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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef __GNUG__
#pragma implementation
#endif
#include <builtin.h>
#include <Random.h>
#include <Erlang.h>

double Erlang::operator()()
{
    double prod = 1.0;

    for (int i = 0; i < k; i++) {
	prod *= pGenerator -> asDouble();
    }
    return(-log(prod)/a);
}
OpenPOWER on IntegriCloud