mirror of
https://github.com/Z3Prover/z3
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57 lines
1.2 KiB
C++
57 lines
1.2 KiB
C++
/*++
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Copyright (c) 2017 Microsoft Corporation
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Module Name:
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<name>
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Abstract:
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<abstract>
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Author:
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Lev Nachmanson (levnach)
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Revision History:
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--*/
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#pragma once
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namespace lp {
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template <typename T>
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class indexed_value {
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public:
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T m_value;
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// the idea is that m_index for a row element gives its column, and for a column element its row
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unsigned m_index;
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// m_other is the offset of the corresponding element in its vector : for a row element it points to the column element offset,
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// for a column element it points to the row element offset
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unsigned m_other;
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indexed_value() {}
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indexed_value(T v, unsigned i, unsigned other) :
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m_value(v), m_index(i), m_other(other) {
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}
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const T & value() const {
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return m_value;
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}
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void set_value(T val) {
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m_value = val;
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}
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};
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#ifdef Z3DEBUG
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template <typename X>
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bool check_vector_for_small_values(indexed_vector<X> & w, lp_settings & settings) {
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for (unsigned i : w.m_index) {
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const X & v = w[i];
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if ((!is_zero(v)) && settings.abs_val_is_smaller_than_drop_tolerance(v))
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return false;
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}
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return true;
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}
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#endif
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}
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