1/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2
3/*
4 Copyright (C) 2015 Ferdinando Ametrano
5 Copyright (C) 2015 Paolo Mazzocchi
6
7 This file is part of QuantLib, a free-software/open-source library
8 for financial quantitative analysts and developers - http://quantlib.org/
9
10 QuantLib is free software: you can redistribute it and/or modify it
11 under the terms of the QuantLib license. You should have received a
12 copy of the license along with this program; if not, please email
13 <quantlib-dev@lists.sf.net>. The license is also available online at
14 <http://quantlib.org/license.shtml>.
15
16 This program is distributed in the hope that it will be useful, but WITHOUT
17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
18 FOR A PARTICULAR PURPOSE. See the license for more details.
19*/
20
21/*! \file pascaltriangle.hpp
22 \brief Pascal triangle coefficients calculator
23*/
24
25#ifndef quantlib_pascal_triangle_hpp
26#define quantlib_pascal_triangle_hpp
27
28#include <ql/types.hpp>
29#include <vector>
30
31namespace QuantLib {
32
33 //! Pascal triangle coefficients calculator
34 class PascalTriangle {
35 public:
36 //! Get and store one vector of coefficients after another.
37 static const std::vector<BigNatural>& get(Size order);
38 private:
39 PascalTriangle() = default;
40 static void nextOrder();
41 static std::vector<std::vector<BigNatural> > coefficients_;
42 };
43
44}
45
46#endif
47

source code of quantlib/ql/math/pascaltriangle.hpp