QuantLib: a free/open-source library for quantitative finance
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simpledaycounter.hpp
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1/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2
3/*
4 Copyright (C) 2003 RiskMap srl
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
20/*! \file simpledaycounter.hpp
21 \brief Simple day counter for reproducing theoretical calculations
22*/
23
24#ifndef quantlib_simple_day_counter_hpp
25#define quantlib_simple_day_counter_hpp
26
28
29namespace QuantLib {
30
31 //! Simple day counter for reproducing theoretical calculations.
32 /*! This day counter tries to ensure that whole-month distances
33 are returned as a simple fraction, i.e., 1 year = 1.0,
34 6 months = 0.5, 3 months = 0.25 and so forth.
35
36 \warning this day counter should be used together with
37 NullCalendar, which ensures that dates at whole-month
38 distances share the same day of month. It is <b>not</b>
39 guaranteed to work with any other calendar.
40
41 \ingroup daycounters
42
43 \test the correctness of the results is checked against known
44 good values.
45 */
47 private:
48 class Impl final : public DayCounter::Impl {
49 public:
50 std::string name() const override { return "Simple"; }
51 Date::serial_type dayCount(const Date& d1, const Date& d2) const override;
52 Time
53 yearFraction(const Date& d1, const Date& d2, const Date&, const Date&) const override;
54 };
55 public:
57 : DayCounter(ext::shared_ptr<DayCounter::Impl>(
58 new SimpleDayCounter::Impl())) {}
59 };
60
61}
62
63#endif
Concrete date class.
Definition: date.hpp:125
std::int_fast32_t serial_type
serial number type
Definition: date.hpp:128
abstract base class for day counter implementations
Definition: daycounter.hpp:47
day counter class
Definition: daycounter.hpp:44
Date::serial_type dayCount(const Date &d1, const Date &d2) const override
to be overloaded by more complex day counters
Time yearFraction(const Date &d1, const Date &d2, const Date &, const Date &) const override
std::string name() const override
Simple day counter for reproducing theoretical calculations.
day counter class
Real Time
continuous quantity with 1-year units
Definition: types.hpp:62
Definition: any.hpp:35