John K. Luebs
81396a5322
git-subtree-dir: kiwi git-subtree-split: 268028ee4a694dcd89e4b1e683bf2f9ac48c08d9
63 lines
1.5 KiB
C++
63 lines
1.5 KiB
C++
/*-----------------------------------------------------------------------------
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| Copyright (c) 2013-2017, Nucleic Development Team.
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| Distributed under the terms of the Modified BSD License.
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| The full license is in the file LICENSE, distributed with this software.
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|----------------------------------------------------------------------------*/
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#pragma once
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#include <vector>
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#include "term.h"
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namespace kiwi
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{
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class Expression
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{
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public:
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Expression(double constant = 0.0) : m_constant(constant) {}
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Expression(const Term &term, double constant = 0.0) : m_terms(1, term), m_constant(constant) {}
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Expression(std::vector<Term> terms, double constant = 0.0) : m_terms(std::move(terms)), m_constant(constant) {}
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Expression(const Expression&) = default;
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// Could be marked noexcept but for a bug in the GCC of the manylinux1 image
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Expression(Expression&&) = default;
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~Expression() = default;
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const std::vector<Term> &terms() const
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{
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return m_terms;
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}
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double constant() const
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{
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return m_constant;
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}
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double value() const
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{
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double result = m_constant;
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for (const Term &term : m_terms)
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result += term.value();
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return result;
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}
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Expression& operator=(const Expression&) = default;
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// Could be marked noexcept but for a bug in the GCC of the manylinux1 image
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Expression& operator=(Expression&&) = default;
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private:
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std::vector<Term> m_terms;
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double m_constant;
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};
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} // namespace kiwi
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