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51 lines
1.2 KiB
C++
51 lines
1.2 KiB
C++
/*++
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Copyright (c) 2007 Microsoft Corporation
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Module Name:
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nnf.h
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Abstract:
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Negation Normal Form & Skolemization
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Author:
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Leonardo (leonardo) 2008-01-11
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Notes:
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Major revision on 2011-10-06
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--*/
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#ifndef NNF_H_
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#define NNF_H_
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#include "ast/ast.h"
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#include "util/params.h"
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#include "ast/normal_forms/defined_names.h"
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class nnf {
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struct imp;
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imp * m_imp;
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public:
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nnf(ast_manager & m, defined_names & n, params_ref const & p = params_ref());
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~nnf();
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void operator()(expr * n, // [IN] expression that should be put into NNF
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expr_ref_vector & new_defs, // [OUT] new definitions
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proof_ref_vector & new_def_proofs, // [OUT] proofs of the new definitions
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expr_ref & r, // [OUT] resultant expression
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proof_ref & p // [OUT] proof for (~ n r)
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);
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void updt_params(params_ref const & p);
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/*
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REG_MODULE_PARAMS('nnf', 'nnf::get_param_descrs')
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*/
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static void get_param_descrs(param_descrs & r);
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void reset();
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void reset_cache();
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};
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#endif /* NNF_H_ */
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