actualactual.hpp

/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
 
/*
 Copyright (C) 2000, 2001, 2002, 2003 RiskMap 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
 <http://quantlib.org/license.shtml>.
 
 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.
*/
 
#ifndef quantlib_actualactual_day_counter_h
#define quantlib_actualactual_day_counter_h
 
#include <ql/time/daycounter.hpp>
#include <ql/time/schedule.hpp>
#include <utility>
 
namespace QuantLib {
 
 
    class ActualActual : public DayCounter {
      public:
        enum Convention { ISMA, Bond,
                          ISDA, Historical, Actual365,
                          AFB, Euro };
      private:
        class ISMA_Impl final : public DayCounter::Impl {
          public:
            explicit ISMA_Impl(Schedule schedule) : schedule_(std::move(schedule)) {}
 
            std::string name() const override { return std::string("Actual/Actual (ISMA)"); }
            Time yearFraction(const Date& d1,
                              const Date& d2,
                              const Date& refPeriodStart,
                              const Date& refPeriodEnd) const override;
 
          private:
            Schedule schedule_;
        };
        class Old_ISMA_Impl final : public DayCounter::Impl {
          public:
            std::string name() const override { return std::string("Actual/Actual (ISMA)"); }
            Time yearFraction(const Date& d1,
                              const Date& d2,
                              const Date& refPeriodStart,
                              const Date& refPeriodEnd) const override;
        };
        class ISDA_Impl final : public DayCounter::Impl {
          public:
            std::string name() const override { return std::string("Actual/Actual (ISDA)"); }
            Time
            yearFraction(const Date& d1, const Date& d2, const Date&, const Date&) const override;
        };
        class AFB_Impl final : public DayCounter::Impl {
          public:
            std::string name() const override { return std::string("Actual/Actual (AFB)"); }
            Time
            yearFraction(const Date& d1, const Date& d2, const Date&, const Date&) const override;
        };
        static ext::shared_ptr<DayCounter::Impl> implementation(Convention c, 
                                                                const Schedule& schedule);
      public:
        explicit ActualActual(Convention c,
                              const Schedule& schedule = Schedule())
        : DayCounter(implementation(c, schedule)) {}
    };
 
}
 
#endif