Z3 sources

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

lib/cofactor_elim_term_ite.h

@@ -0,0 +1,44 @@
+/*++
+Copyright (c) 2011 Microsoft Corporation
+
+Module Name:
+
+    cofactor_elim_term_ite.h
+
+Abstract:
+
+    Eliminate (ground) term if-then-else's using cofactors.
+
+Author:
+
+    Leonardo de Moura (leonardo) 2011-06-05.
+
+Revision History:
+
+--*/
+#ifndef _COFACTOR_ELIM_TERM_ITE_H_
+#define _COFACTOR_ELIM_TERM_ITE_H_
+
+#include"ast.h"
+#include"params.h"
+
+class cofactor_elim_term_ite {
+    struct     imp;
+    imp *      m_imp;
+    params_ref m_params;
+public:
+    cofactor_elim_term_ite(ast_manager & m, params_ref const & p = params_ref());
+    virtual ~cofactor_elim_term_ite();
+
+    void updt_params(params_ref const & p);
+    static void get_param_descrs(param_descrs & r);
+
+    void operator()(expr * t, expr_ref & r);
+    
+    void cancel() { set_cancel(true); }
+    void reset_cancel() { set_cancel(false); }
+    void set_cancel(bool f);
+    void cleanup();
+};
+
+#endif