Z3 sources

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

lib/spc_unary_inference.h

@@ -0,0 +1,48 @@
+/*++
+Copyright (c) 2006 Microsoft Corporation
+
+Module Name:
+
+    spc_unary_inference.h
+
+Abstract:
+
+    <abstract>
+
+Author:
+
+    Leonardo de Moura (leonardo) 2008-02-14.
+
+Revision History:
+
+--*/
+#ifndef _SPC_UNARY_INFERENCE_H_
+#define _SPC_UNARY_INFERENCE_H_
+
+#include"spc_clause.h"
+#include"unifier.h"
+
+namespace spc {
+
+    /**
+       \brief Superclass for eq_resolution and factoring.
+    */
+    class unary_inference {
+    protected:
+        ast_manager & m_manager;
+        order &       m_order;
+        substitution  m_subst;
+        unifier       m_unifier; 
+        
+        clause * mk_result(clause * cls, unsigned j);
+        virtual justification * mk_justification(justification * parent, unsigned num_lits, literal * new_lits) = 0;
+    public:
+        unary_inference(ast_manager & m, order & ord);
+        virtual ~unary_inference() {}
+    };
+
+};
+
+
+#endif /* _SPC_UNARY_INFERENCE_H_ */
+