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 Copyright (C) 2006 StatPro Italia srl

 This file is part of QuantLib, a free-software/open-source library
 for financial quantitative analysts and developers - http://quantlib.org/

 QuantLib is free software: you can redistribute it and/or modify it
 under the terms of the QuantLib license.  You should have received a
 copy of the license along with this program; if not, please email
 <quantlib-dev@lists.sf.net>. The license is also available online at

 This program 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 license for more details. */

/*! \file swapindex.hpp
    \brief swap-rate indexes

#ifndef quantlib_swapindex_hpp
#define quantlib_swapindex_hpp

#include <ql/Indexes/interestrateindex.hpp>
#include <ql/Instruments/vanillaswap.hpp>

namespace QuantLib {

    //! base class for swap-rate indexes
00031     class SwapIndex : public InterestRateIndex {
        SwapIndex(const std::string& familyName,
                  Integer years,
                  Integer settlementDays,
                  const Currency& currency,
                  const Calendar& calendar,
                  Frequency fixedLegFrequency,
                  BusinessDayConvention fixedLegConvention,
                  const DayCounter& fixedLegDayCounter,
                  const boost::shared_ptr<Xibor>& iborIndex);
        //! \name InterestRateIndex interface
        boost::shared_ptr<YieldTermStructure> termStructure() const;
        Rate forecastFixing(const Date& fixingDate) const;
        //! \name Inspectors
        Frequency fixedLegFrequency() const;
        BusinessDayConvention fixedLegConvention() const;
        boost::shared_ptr<Xibor> iborIndex() const;
        Schedule fixedRateSchedule(const Date& fixingDate) const;
        /*! \warning Relinking the term structure underlying the index will
                     not have effect on the returned swap.
        boost::shared_ptr<VanillaSwap> underlyingSwap(
                                                const Date& fixingDate) const;
        Integer years_;
        boost::shared_ptr<Xibor> iborIndex_;
        Frequency fixedLegFrequency_;
        BusinessDayConvention fixedLegConvention_;

    // inline definitions

    inline boost::shared_ptr<YieldTermStructure>
    SwapIndex::termStructure() const {
        return iborIndex_->termStructure();

    inline Frequency SwapIndex::fixedLegFrequency() const {
        return fixedLegFrequency_;

    inline BusinessDayConvention SwapIndex::fixedLegConvention() const {
        return fixedLegConvention_;

    inline boost::shared_ptr<Xibor> SwapIndex::iborIndex() const {
        return iborIndex_;



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