fxbsconstantparametrization.cpp

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/*
 Copyright (C) 2016 Quaternion Risk Management Ltd
 All rights reserved.
 
 This file is part of ORE, a free-software/open-source library
 for transparent pricing and risk analysis - http://opensourcerisk.org
 
 ORE is free software: you can redistribute it and/or modify it
 under the terms of the Modified BSD License.  You should have received a
 copy of the license along with this program.
 The license is also available online at <http://opensourcerisk.org>
 
 This program is distributed on the basis that it will form a useful
 contribution to risk analytics and model standardisation, 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/math/comparison.hpp>
#include <qle/models/fxbsconstantparametrization.hpp>
 
namespace QuantExt {
 
FxBsConstantParametrization::FxBsConstantParametrization(const Currency& currency, const Handle<Quote>& fxSpotToday,
                                                         const Real sigma,
    const QuantLib::ext::shared_ptr<Constraint>& sigmaConstraint)
    : FxBsParametrization(currency, fxSpotToday),
      sigma_(QuantLib::ext::make_shared<PseudoParameter>(1, *sigmaConstraint)) {
    sigma_->setParam(0, inverse(0, sigma));
}
 
} // namespace QuantExt