z3-z3-4.12.6.src.ast.cost_evaluator.h Maven / Gradle / Ivy
/*++
Copyright (c) 2006 Microsoft Corporation
Module Name:
cost_evaluator.h
Abstract:
Simple evaluator for cost function
Author:
Leonardo de Moura (leonardo) 2008-06-14.
Revision History:
--*/
#pragma once
#include "ast/ast.h"
#include "ast/arith_decl_plugin.h"
class cost_evaluator {
ast_manager & m;
arith_util m_util;
unsigned m_num_args;
float const * m_args;
float eval(expr * f) const;
public:
cost_evaluator(ast_manager & m);
/**
I'm using the same standard used in quantifier instantiation.
(VAR 0) is stored in the last position of the array.
...
(VAR (num_args - 1)) is stored in the first position of the array.
*/
float operator()(expr * f, unsigned num_args, float const * args);
};