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/*-----------------------------------------------------------------------------
| Copyright (c) 2013-2017, Nucleic Development Team.
|
| Distributed under the terms of the Modified BSD License.
|
| The full license is in the file LICENSE, distributed with this software.
|----------------------------------------------------------------------------*/
#pragma once
#include <vector>
#include "term.h"
namespace kiwi
{
class Expression
{
public:
Expression(double constant = 0.0) : m_constant(constant) {}
Expression(const Term &term, double constant = 0.0) : m_terms(1, term), m_constant(constant) {}
Expression(std::vector<Term> terms, double constant = 0.0) : m_terms(std::move(terms)), m_constant(constant) {}
Expression(const Expression&) = default;
// Could be marked noexcept but for a bug in the GCC of the manylinux1 image
Expression(Expression&&) = default;
~Expression() = default;
const std::vector<Term> &terms() const
{
return m_terms;
}
double constant() const
{
return m_constant;
}
double value() const
{
double result = m_constant;
for (const Term &term : m_terms)
result += term.value();
return result;
}
Expression& operator=(const Expression&) = default;
// Could be marked noexcept but for a bug in the GCC of the manylinux1 image
Expression& operator=(Expression&&) = default;
private:
std::vector<Term> m_terms;
double m_constant;
};
} // namespace kiwi
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