Z3 sources

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

lib/expr2subpaving.h

@@ -0,0 +1,58 @@
+/*++
+Copyright (c) 2012 Microsoft Corporation
+
+Module Name:
+
+    expr2subpaving.h
+
+Abstract:
+
+    Translator from Z3 expressions into generic subpaving data-structure.
+    
+    
+Author:
+
+    Leonardo (leonardo) 2012-08-08
+
+Notes:
+
+--*/
+#ifndef _EXPR2SUBPAVING_H_
+#define _EXPR2SUBPAVING_H_
+
+#include"ast.h"
+#include"subpaving.h"
+
+class expr2var;
+
+class expr2subpaving {
+    struct imp;
+    imp *  m_imp;
+public:
+    expr2subpaving(ast_manager & m, subpaving::context & s, expr2var * e2v = 0);
+    ~expr2subpaving();
+
+    ast_manager & m() const;
+
+    subpaving::context & s() const;
+    
+    /**
+       \brief Return true if t was encoded as a variable by the translator.
+    */
+    bool is_var(expr * t) const;
+    
+    /**
+       \brief Cancel/Interrupt execution.
+    */
+    void set_cancel(bool f);
+    
+    /**
+       \brief Internalize a Z3 arithmetical expression into the subpaving data-structure.
+
+       \remark throws subpaving::exception there is a translation error (when using imprecise representations, i.e. floats, in the subpaving module)
+    */
+    subpaving::var internalize_term(expr * t, /* out */ mpz & n, /* out */ mpz & d);
+};
+
+
+#endif