refactor

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

src/nlsat/nlsat_common.h

@@ -0,0 +1,71 @@
+/*++
+  Copyright (c) 2025
+
+  Module Name:
+
+  nlsat_common.h
+
+  Abstract:
+
+  Pretty-print helpers for NLSAT components as free functions.
+  These forward to existing solver/pmanager display facilities.
+
+  --*/
+#pragma once
+
+#include "nlsat/nlsat_solver.h"
+#include "nlsat/nlsat_scoped_literal_vector.h"
+namespace nlsat {
+
+    inline std::ostream& display(std::ostream& out, pmanager& pm, polynomial_ref const& p, display_var_proc const& proc) {
+        pm.display(out, p, proc);
+        return out;
+    }
+
+    inline std::ostream& display(std::ostream& out, pmanager& pm, polynomial_ref_vector const& ps, display_var_proc const& proc, char const* delim = "\n") {
+        for (unsigned i = 0; i < ps.size(); ++i) {
+            if (i > 0) out << delim;
+            pm.display(out, ps.get(i), proc);
+        }
+        return out;
+    }
+
+    inline std::ostream& display(std::ostream& out, solver& s, polynomial_ref const& p) {
+        return display(out, s.pm(), p, s.display_proc());
+    }
+
+    inline std::ostream& display(std::ostream& out, solver& s, polynomial_ref_vector const& ps, char const* delim = "\n") {
+        return display(out, s.pm(), ps, s.display_proc(), delim);
+    }
+
+    inline std::ostream& display(std::ostream& out, solver& s, literal l) {
+        return s.display(out, l);
+    }
+
+    inline std::ostream& display(std::ostream& out, solver& s, unsigned n, literal const* ls) {
+        return s.display(out, n, ls);
+    }
+
+    inline std::ostream& display(std::ostream& out, solver& s, literal_vector const& ls) {
+        return s.display(out, ls);
+    }
+
+    inline std::ostream& display(std::ostream& out, solver& s, scoped_literal_vector const& ls) {
+        return s.display(out, ls.size(), ls.data());
+    }
+
+    inline std::ostream& display_var(std::ostream& out, solver& s, var x) {
+        return s.display(out, x);
+    }
+    /**
+       \brief evaluate the given polynomial in the current interpretation.
+       max_var(p) must be assigned in the current interpretation.
+    */
+    inline ::sign sign(polynomial_ref const & p, assignment & x2v, anum_manager& am) {
+        SASSERT(max_var(p) == null_var || x2v.is_assigned(max_var(p)));
+        auto s = am.eval_sign_at(p, x2v);
+        TRACE(nlsat_explain, tout << "p: " << p << " var: " << max_var(p) << " sign: " << s << "\n";);
+        return s;
+    }
+
+} // namespace nlsat