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/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
Copyright (C) 2004 Decillion Pty(Ltd)
Copyright (C) 2007 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
<https://www.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.
*/
#include <ql/money.hpp>
#include <ql/currencies/exchangeratemanager.hpp>
#include <ql/math/comparison.hpp>
namespace QuantLib {
namespace {
void convertTo(Money& m, const Currency& target) {
if (m.currency() != target) {
ExchangeRate rate =
ExchangeRateManager::instance().lookup(m.currency(),
target);
m = rate.exchange(m).rounded();
}
}
void convertToBase(Money& m) {
const auto & base_currency =
Money::Settings::instance().baseCurrency();
QL_REQUIRE(!base_currency.empty(), "no base currency set");
convertTo(m, base_currency);
}
template< typename ReturnValue, typename Function >
ReturnValue apply(const Money& m1, const Money& m2, const Function f) {
const auto & conversion_type =
Money::Settings::instance().conversionType();
if (m1.currency() == m2.currency()) {
return f(m1.value(), m2.value());
} else if (conversion_type == Money::BaseCurrencyConversion) {
Money tmp1 = m1;
convertToBase(tmp1);
Money tmp2 = m2;
convertToBase(tmp2);
return f(tmp1.value(), tmp2.value());
} else if (conversion_type == Money::AutomatedConversion) {
Money tmp = m2;
convertTo(tmp, m1.currency());
return f(m1.value(), tmp.value());
} else {
QL_FAIL("currency mismatch and no conversion specified");
}
}
}
Money& Money::operator+=(const Money& m) {
const auto & conversion_type = Settings::instance().conversionType();
if (currency_ == m.currency_) {
value_ += m.value_;
} else if (conversion_type == Money::BaseCurrencyConversion) {
convertToBase(*this);
Money tmp = m;
convertToBase(tmp);
*this += tmp;
} else if (conversion_type == Money::AutomatedConversion) {
Money tmp = m;
convertTo(tmp, currency_);
*this += tmp;
} else {
QL_FAIL("currency mismatch and no conversion specified");
}
return *this;
}
Money& Money::operator-=(const Money& m) {
return *this += (-m);
}
Decimal operator/(const Money& m1, const Money& m2) {
return apply<Decimal>(
m1, m2,
[](const Real x, const Real y) { return x / y; });
}
bool operator==(const Money& m1, const Money& m2) {
return apply<bool>(
m1, m2,
[](const Real x, const Real y) { return x == y; });
}
bool operator<(const Money& m1, const Money& m2) {
return apply<bool>(
m1, m2,
[](const Real x, const Real y) { return x < y; });
}
bool operator<=(const Money& m1, const Money& m2) {
return apply<bool>(
m1, m2,
[](const Real x, const Real y) { return x <= y; });
}
bool close(const Money& m1, const Money& m2, Size n) {
return apply<bool>(
m1, m2,
[n](const Real x, const Real y) { return close(x, y, n); });
}
bool close_enough(const Money& m1, const Money& m2, Size n) {
return apply<bool>(
m1, m2,
[n](const Real x, const Real y) { return close_enough(x, y, n); });
}
std::ostream& operator<<(std::ostream& out, const Money& m) {
return out << m.rounded().value() << " " << m.currency().code();
}
const Money::ConversionType & Money::Settings::conversionType() const
{
return conversionType_;
}
Money::ConversionType & Money::Settings::conversionType()
{
return conversionType_;
}
const Currency & Money::Settings::baseCurrency() const
{
return baseCurrency_;
}
Currency & Money::Settings::baseCurrency()
{
return baseCurrency_;
}
Money::BaseCurrencyProxy& Money::BaseCurrencyProxy::operator=(const Currency& c) {
Money::Settings::instance().baseCurrency() = c;
return *this;
}
Money::BaseCurrencyProxy::operator Currency() const {
return Money::Settings::instance().baseCurrency();
}
Money::ConversionTypeProxy& Money::ConversionTypeProxy::operator=(ConversionType t) {
Money::Settings::instance().conversionType() = t;
return *this;
}
Money::ConversionTypeProxy::operator Money::ConversionType() const {
return Money::Settings::instance().conversionType();
}
}
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