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fix loop in equiv_monomials (#91)

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* fix loop in equiv_monomials

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* fixes

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-04-18 19:11:02 -07:00 • committed by Lev Nachmanson
parent e6561c983f
commit 7e67e1ce99
5 changed files with 26 additions and 16 deletions
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20
src/util/lp/emonomials.h
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@ -305,27 +305,37 @@ namespace nla {
*/
class sign_equiv_monomials_it {
emonomials const& m;
unsigned m_index;
bool m_touched;
unsigned m_index;
bool m_touched;
public:
sign_equiv_monomials_it(emonomials const& m, unsigned idx, bool at_end): m(m), m_index(idx), m_touched(at_end) {}
sign_equiv_monomials_it(emonomials const& m, unsigned idx, bool at_end):
m(m), m_index(idx), m_touched(at_end) {}
monomial const& operator*() { return m.m_monomials[m_index]; }
sign_equiv_monomials_it& operator++() {
m_touched = true;
m_index = m.m_canonized[m_index].m_next;
return *this;
}
sign_equiv_monomials_it operator++(int) { sign_equiv_monomials_it tmp = *this; ++*this; return tmp; }
sign_equiv_monomials_it operator++(int) {
sign_equiv_monomials_it tmp = *this;
++*this;
return tmp;
}
bool operator==(sign_equiv_monomials_it const& other) const {
return m_index == other.m_index && m_touched == other.m_touched;
}
bool operator!=(sign_equiv_monomials_it const& other) const {
return m_index != other.m_index || m_touched != other.m_touched;
}
};
class sign_equiv_monomials {
emonomials& em;
emonomials& em;
monomial const& m;
unsigned index() const { return em.m_var2index[m.var()]; }
public: