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