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use structured proof hints

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-05-28 09:37:41 -07:00
parent 7da9f12521
commit dd46224a1d
10 changed files with 233 additions and 63 deletions
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9
src/util/sat_literal.h
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@ -95,6 +95,7 @@ namespace sat {
inline bool operator!=(literal const & l1, literal const & l2) { return l1.m_val != l2.m_val; }
inline std::ostream & operator<<(std::ostream & out, sat::literal l) { if (l == sat::null_literal) out << "null"; else out << (l.sign() ? "-" : "") << l.var(); return out; }
typedef svector<literal> literal_vector;
@ -192,3 +193,11 @@ namespace sat {
}
};
namespace std {
inline std::string to_string(sat::literal l) {
if (l.sign()) return "-" + to_string(l.var());
return to_string(l.var());
}
};