QuantLib: a free/open-source library for quantitative finance
fully annotated source code - version 1.34
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multistepswap.cpp
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1/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2
3/*
4 Copyright (C) 2006 Giorgio Facchinetti
5
6 This file is part of QuantLib, a free-software/open-source library
7 for financial quantitative analysts and developers - http://quantlib.org/
8
9 QuantLib is free software: you can redistribute it and/or modify it
10 under the terms of the QuantLib license. You should have received a
11 copy of the license along with this program; if not, please email
12 <quantlib-dev@lists.sf.net>. The license is also available online at
13 <http://quantlib.org/license.shtml>.
14
15 This program is distributed in the hope that it will be useful, but WITHOUT
16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17 FOR A PARTICULAR PURPOSE. See the license for more details.
18*/
19
23#include <utility>
24
25namespace QuantLib {
26
27 MultiStepSwap::MultiStepSwap(const std::vector<Time>& rateTimes,
28 std::vector<Real> fixedAccruals,
29 std::vector<Real> floatingAccruals,
30 const std::vector<Time>& paymentTimes,
31 Real fixedRate,
32 bool payer)
33 : MultiProductMultiStep(rateTimes), fixedAccruals_(std::move(fixedAccruals)),
34 floatingAccruals_(std::move(floatingAccruals)), paymentTimes_(paymentTimes),
35 fixedRate_(fixedRate), multiplier_(payer ? 1.0 : -1.0), lastIndex_(rateTimes.size() - 1) {
36 checkIncreasingTimes(paymentTimes);
37 }
38
40 const CurveState& currentState,
41 std::vector<Size>& numberCashFlowsThisStep,
42 std::vector<std::vector<MarketModelMultiProduct::CashFlow> >&
43 genCashFlows)
44 {
45 Rate liborRate = currentState.forwardRate(currentIndex_);
46
47 genCashFlows[0][0].timeIndex = currentIndex_;
48 genCashFlows[0][0].amount =
50
51 genCashFlows[0][1].timeIndex = currentIndex_;
52 genCashFlows[0][1].amount =
54
55 numberCashFlowsThisStep[0] = 2;
56
58
59 return (currentIndex_ == lastIndex_);
60 }
61
62 std::unique_ptr<MarketModelMultiProduct>
64 return std::unique_ptr<MarketModelMultiProduct>(new MultiStepSwap(*this));
65 }
66
67}
68
Curve state for market-model simulations
Definition: curvestate.hpp:41
virtual Rate forwardRate(Size i) const =0
Multiple-step market-model product.
MultiStepSwap(const std::vector< Time > &rateTimes, std::vector< Real > fixedAccruals, std::vector< Real > floatingAccruals, const std::vector< Time > &paymentTimes, Rate fixedRate, bool payer=true)
std::vector< Real > floatingAccruals_
std::unique_ptr< MarketModelMultiProduct > clone() const override
returns a newly-allocated copy of itself
bool nextTimeStep(const CurveState &currentState, std::vector< Size > &numberCashFlowsThisStep, std::vector< std::vector< CashFlow > > &cashFlowsGenerated) override
return value indicates whether path is finished, TRUE means done
std::vector< Real > fixedAccruals_
QL_REAL Real
real number
Definition: types.hpp:50
Real Rate
interest rates
Definition: types.hpp:70
Definition: any.hpp:35
void checkIncreasingTimes(const std::vector< Time > &times)
check for strictly increasing times, first time greater than zero
Definition: utilities.cpp:92
STL namespace.