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operate with sign as a boolean

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-05-06 16:44:48 -07:00
parent 6d5fd5d980
commit 495161fe5c
9 changed files with 57 additions and 65 deletions
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18
src/util/lp/nla_core.h
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@ -116,13 +116,13 @@ public:
void add_empty_lemma();
// the value of the factor is equal to the value of the variable multiplied
// by the canonize_sign
rational canonize_sign(const factor& f) const;
bool canonize_sign(const factor& f) const;
rational canonize_sign_of_var(lpvar j) const;
bool canonize_sign(lpvar j) const;
// the value of the rooted monomias is equal to the value of the m.var() variable multiplied
// by the canonize_sign
rational canonize_sign(const monomial& m) const;
bool canonize_sign(const monomial& m) const;
void deregister_monomial_from_monomialomials (const monomial & m, unsigned i);
@ -186,6 +186,8 @@ public:
void mk_ineq(lp::lar_term& t, llc cmp, const rational& rs);
void mk_ineq(const rational& a, lpvar j, const rational& b, lpvar k, llc cmp, const rational& rs);
void mk_ineq(bool a, lpvar j, bool b, lpvar k, llc cmp, const rational& rs);
void mk_ineq(bool a, lpvar j, bool b, lpvar k, llc cmp);
void mk_ineq(lpvar j, const rational& b, lpvar k, llc cmp, const rational& rs);
void mk_ineq(lpvar j, const rational& b, lpvar k, llc cmp);
void mk_ineq(const rational& a, lpvar j, const rational& b, lpvar k, llc cmp);
@ -240,20 +242,13 @@ public:
const monomial* find_monomial_of_vars(const svector<lpvar>& vars) const;
int get_derived_sign(const monomial& rm, const factorization& f) const;
bool var_has_positive_lower_bound(lpvar j) const;
bool var_has_negative_upper_bound(lpvar j) const;
bool var_is_separated_from_zero(lpvar j) const;
bool vars_are_equiv(lpvar a, lpvar b) const;
bool vars_are_equiv(lpvar a, lpvar b) const;
void explain_equiv_vars(lpvar a, lpvar b);
void explain(const factorization& f, lp::explanation& exp);
bool explain_upper_bound(const lp::lar_term& t, const rational& rs, lp::explanation& e) const;
@ -353,6 +348,7 @@ struct pp_rmon {
pp_rmon(core const& c, monomial const& m): c(c), m(m) {}
pp_rmon(core const& c, lpvar v): c(c), m(c.m_emons[v]) {}
};
inline rational sign_to_rat(bool s) { return rational(s? -1 : 1); }
inline std::ostream& operator<<(std::ostream& out, pp_mon const& p) { return p.c.print_monomial(p.m, out); }
inline std::ostream& operator<<(std::ostream& out, pp_rmon const& p) { return p.c.print_monomial_with_vars(p.m, out); }