/usr/include/ql/math/curve.hpp is in libquantlib0-dev 1.7.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | /* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
Copyright (C) 2006 Joseph Wang
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.
*/
/*! \file curve.hpp
\brief Curve
*/
#ifndef quantlib_curve_hpp
#define quantlib_curve_hpp
#include <ql/types.hpp>
#include <functional>
namespace QuantLib {
//! abstract curve class
class Curve : public std::unary_function<Real, Real> {
public:
virtual ~Curve() {}
virtual Real operator()(Real x) const = 0;
};
class TestCurve : public Curve {
public:
Real operator()(Real x) const { return std::sin(x); }
};
}
#endif
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