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/*-----------------------------------------------------------------------
File : cte_termweightext.h
Author: Stephan Schulz, yan
Contents
Generic extensions of term weight functions to clause weight functions
Copyright 1998-2018 by the author.
This code is released under the GNU General Public Licence and
the GNU Lesser General Public License.
See the file COPYING in the main E directory for details..
Run "eprover -h" for contact information.
Created: Wed Nov 7 21:37:27 CET 2018
-----------------------------------------------------------------------*/
#ifndef CTE_TERMWEIGHTEXT
#define CTE_TERMWEIGHTEXT
#include "cte_termtypes.h"
/*---------------------------------------------------------------------*/
/* Data type declarations */
/*---------------------------------------------------------------------*/
/* Term weight extension styles */
typedef enum
{
TWESimple = 0, /* apply term function to a term */
TWESubtermsSum = 1, /* apply to all substerms and sum */
TWESubtermsMax = 2 /* take max weight of all substerms */
}TermWeightExtenstionStyle;
/* Generic parametric term weight function */
typedef double (*TermWeightFun)(Term_p term, void* data);
/* Term weight externsion description */
typedef struct termweightextensioncell
{
double max_term_multiplier; /* max term multiplier */
double max_literal_multiplier; /* max literal multilier */
double pos_eq_multiplier; /* pos. equality multiplier */
TermWeightExtenstionStyle ext_style; /* extension style */
TermWeightFun term_weight_fun; /* term weight function */
void* data; /* optional data param */
} TermWeightExtensionCell, *TermWeightExtension_p;
/*---------------------------------------------------------------------*/
/* Exported Functions and Variables */
/*---------------------------------------------------------------------*/
#define TermWeightExtensionCellAlloc() (TermWeightExtensionCell*)SizeMalloc(sizeof(TermWeightExtensionCell))
#define TermWeightExtensionCellFree(junk) SizeFree(junk, sizeof(TermWeightExtensionCell))
TermWeightExtension_p TermWeightExtensionAlloc(
double max_term_multiplier,
double max_literal_multiplier,
double pos_eq_multiplier,
TermWeightExtenstionStyle ext_style,
TermWeightFun term_weight_fun,
void* data);
void TermWeightExtensionFree(TermWeightExtension_p junk);
double TermExtWeight(Term_p term, TermWeightExtension_p twe);
#endif
/*---------------------------------------------------------------------*/
/* End of File */
/*---------------------------------------------------------------------*/
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