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avoid patching vars in powers

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-04-01 12:31:32 -07:00
commit ec1f449d34
15 changed files with 160 additions and 96 deletions
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11
src/math/lp/monic.h
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@ -16,6 +16,7 @@
#include "util/vector.h"
#include "math/lp/lar_solver.h"
#include "math/lp/nla_defs.h"
#include <algorithm>
namespace nla {
class mon_eq {
@ -38,7 +39,15 @@ public:
unsigned size() const { return m_vs.size(); }
const svector<lp::var_index>& vars() const { return m_vs; }
bool empty() const { return m_vs.empty(); }
bool is_sorted() const {
for (unsigned i = 0; i + 1 < size(); i++)
if (m_vs[i] > m_vs[i + 1])
return false;
return true;
}
bool contains_var(lpvar j) const {
return std::binary_search(m_vs.begin(), m_vs.end(), j);
}
protected:
svector<lp::var_index>& vars1() { return m_vs; }
};