Z3 sources

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

lib/elim_term_ite_strategy.h

@@ -0,0 +1,53 @@
+/*++
+Copyright (c) 2011 Microsoft Corporation
+
+Module Name:
+
+    elim_term_ite_strategy.h
+
+Abstract:
+
+    Eliminate term if-then-else by adding 
+    new fresh auxiliary variables.
+
+Author:
+
+    Leonardo (leonardo) 2011-06-15
+
+Notes:
+
+--*/
+#ifndef _ELIM_TERM_ITE_STRATEGY_H_
+#define _ELIM_TERM_ITE_STRATEGY_H_
+
+#include"strategy_exception.h"
+#include"model_converter.h"
+#include"params.h"
+#include"assertion_set_strategy.h"
+
+class assertion_set;
+MK_ST_EXCEPTION(elim_term_ite_exception);
+
+class elim_term_ite_strategy : public assertion_set_strategy {
+    struct     imp;
+    imp *      m_imp;
+    params_ref m_params;
+public:
+    elim_term_ite_strategy(ast_manager & m, params_ref const & p = params_ref());
+    virtual ~elim_term_ite_strategy();
+
+    virtual void updt_params(params_ref const & p);
+    static  void get_param_descrs(param_descrs & r);
+    virtual void collect_param_descrs(param_descrs & r) { get_param_descrs(r); }
+    
+    virtual void operator()(assertion_set & s, model_converter_ref & mc);
+
+    virtual void cleanup();
+    virtual void set_cancel(bool f);
+};
+
+inline as_st * mk_elim_term_ite(ast_manager & m, params_ref const & p = params_ref()) {
+    return clean(alloc(elim_term_ite_strategy, m, p));
+}
+
+#endif