/*++
Copyright (c) 2006 Microsoft Corporation
Module Name:
uses_theory.h
Abstract:
<abstract>
Author:
Leonardo de Moura (leonardo) 2008-10-21.
Revision History:
--*/
#pragma once
#include "ast/ast.h"
/**
\brief Return true if the given expression contains a symbol of the given theory.
*/
bool uses_theory(expr * n, family_id fid);
/**
\brief Return true if the given expression contains a symbol of the given theory.
Only the expressions not marked as visited are checked. The set visited is updated
with the new checked expressions.
*/
bool uses_theory(expr * n, family_id fid, expr_mark & visited);