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50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
/*++
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Copyright (c) 2012 Microsoft Corporation
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Module Name:
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polynomial_var2value.h
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Abstract:
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Simple implementations of the var2value interface.
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Author:
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Leonardo (leonardo) 2012-01-05
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Notes:
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--*/
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#ifndef POLYNOMIAL_VAR2VALUE_H_
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#define POLYNOMIAL_VAR2VALUE_H_
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#include "math/polynomial/polynomial.h"
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#include "util/scoped_numeral_vector.h"
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namespace polynomial {
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// default implementation used for debugging purposes
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template<typename ValManager>
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class simple_var2value : public var2value<ValManager, typename ValManager::numeral> {
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var_vector m_xs;
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_scoped_numeral_vector<ValManager> m_vs;
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public:
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simple_var2value(ValManager & m):m_vs(m) {}
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void push_back(var x, typename ValManager::numeral const & v) { m_xs.push_back(x); m_vs.push_back(v); }
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ValManager & m() const override { return m_vs.m(); }
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bool contains(var x) const override { return std::find(m_xs.begin(), m_xs.end(), x) != m_xs.end(); }
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typename ValManager::numeral const & operator()(var x) const override {
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for (unsigned i = 0; i < m_xs.size(); i++)
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if (m_xs[i] == x)
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return m_vs[i];
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UNREACHABLE();
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static typename ValManager::numeral zero;
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return zero;
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}
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};
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};
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#endif
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