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60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
/*++
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Copyright (c) 2006 Microsoft Corporation
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Module Name:
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smt_literal.h
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Abstract:
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<abstract>
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Author:
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Leonardo de Moura (leonardo) 2008-02-18.
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Revision History:
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--*/
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#pragma once
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#include "ast/ast.h"
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#include "smt/smt_types.h"
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#include "util/approx_set.h"
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#include "util/sat_literal.h"
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namespace smt {
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typedef sat::literal literal;
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inline literal to_literal(int x) { return sat::to_literal(x); }
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const literal null_literal;
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const literal true_literal(true_bool_var, false);
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const literal false_literal(true_bool_var, true);
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typedef svector<literal> literal_vector;
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typedef sbuffer<literal> literal_buffer;
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std::ostream& display(std::ostream & out, literal lit, ast_manager & m, expr * const * bool_var2expr_map);
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std::ostream& display_smt2(std::ostream & out, literal lit, ast_manager & m, expr * const * bool_var2expr_map);
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std::ostream& display_compact(std::ostream & out, literal lit, expr * const * bool_var2expr_map);
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std::ostream& display_compact(std::ostream & out, unsigned num_lits, literal const * lits, expr * const * bool_var2expr_map);
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std::ostream& display_verbose(std::ostream & out, ast_manager& m, unsigned num_lits, literal const * lits, expr * const * bool_var2expr_map, char const* sep = "\n");
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template<typename T>
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void neg_literals(unsigned num_lits, literal const * lits, T & result) {
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for (unsigned i = 0; i < num_lits; ++i)
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result.push_back(~lits[i]);
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}
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bool backward_subsumption(unsigned num_lits1, literal const * lits1, unsigned num_lits2, literal const * lits2);
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};
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