Use = default for virtual constructors.

src/smt/mam.h

@@ -37,8 +37,7 @@ namespace smt {
             m_context(ctx) {
         }
         
-        virtual ~mam() {
-        }
+        virtual ~mam() = default;
         
         virtual void add_pattern(quantifier * q, app * mp) = 0;
 

src/smt/smt_case_split_queue.h

@@ -45,7 +45,7 @@ namespace smt {
         virtual void pop_scope(unsigned num_scopes) = 0;
         virtual void next_case_split(bool_var & next, lbool & phase) = 0;
         virtual void display(std::ostream & out) = 0;
-        virtual ~case_split_queue() {}
+        virtual ~case_split_queue() = default;
 
         // theory-aware branching hint
         virtual void add_theory_aware_branching_info(bool_var v, double priority, lbool phase) {}

src/smt/smt_clause.h

@@ -33,7 +33,7 @@ namespace smt {
     */
     class clause_del_eh {
     public:
-        virtual ~clause_del_eh() {}
+        virtual ~clause_del_eh() = default;
         virtual void operator()(ast_manager & m, clause * cls) = 0;
     };
 

src/smt/smt_for_each_relevant_expr.h

@@ -65,7 +65,7 @@ namespace smt {
 
     public:
         for_each_relevant_expr(context & ctx);
-        virtual ~for_each_relevant_expr() {}
+        virtual ~for_each_relevant_expr() = default;
         /**
            \brief Visit the relevant sub-expressions of n.
            That is, only subexpressions m of n, such that m_context.is_relevant(m).

src/smt/smt_justification.h

@@ -49,7 +49,7 @@ namespace smt {
         unsigned m_in_region:1; // true if the object was allocated in a region.
     public:
         justification(bool in_region = true):m_mark(false), m_in_region(in_region) {}
-        virtual ~justification() {}
+        virtual ~justification() = default;
 
         /**
            \brief This method should return true if the method del_eh needs to be invoked 

src/smt/smt_model_finder.cpp

@@ -1157,7 +1157,7 @@ namespace smt {
             ast_manager& m;
         public:
             qinfo(ast_manager& m) :m(m) {}
-            virtual ~qinfo() {}
+            virtual ~qinfo() = default;
             virtual char const* get_kind() const = 0;
             virtual bool is_equal(qinfo const* qi) const = 0;
             virtual void display(std::ostream& out) const { out << "[" << get_kind() << "]"; }

src/smt/smt_model_generator.h

@@ -136,7 +136,7 @@ namespace smt {
     */
     class model_value_proc {
     public:
-        virtual ~model_value_proc() {}
+        virtual ~model_value_proc() = default;
         /**
            \brief Fill result with the dependencies of this functor.
            That is, to invoke mk_value, the dependencies in result must be constructed.

src/smt/smt_quantifier.h

@@ -106,7 +106,7 @@ namespace smt {
 
     class quantifier_manager_plugin {
     public:
-        virtual ~quantifier_manager_plugin() {}
+        virtual ~quantifier_manager_plugin() = default;
 
         virtual void set_manager(quantifier_manager & qm) = 0;
 

src/smt/smt_relevancy.h

@@ -29,7 +29,7 @@ namespace smt {
         void mark_as_relevant(relevancy_propagator & rp, expr * n);
         void mark_args_as_relevant(relevancy_propagator & rp, app * n);
     public:
-        virtual ~relevancy_eh() {}
+        virtual ~relevancy_eh() = default;
         /**
            \brief This method is invoked when n is marked as relevant.
         */
@@ -87,7 +87,7 @@ namespace smt {
         context & m_context;
     public:
         relevancy_propagator(context & ctx);
-        virtual ~relevancy_propagator() {}
+        virtual ~relevancy_propagator() = default;
 
         context & get_context() { return m_context; }
 

src/smt/theory_arith.h

@@ -294,7 +294,7 @@ namespace smt {
                 m_bound_kind(k),
                 m_atom(a) {
             }
-            virtual ~bound() {}
+            virtual ~bound() = default;
             theory_var get_var() const { return m_var; }
             bound_kind get_bound_kind() const { return static_cast<bound_kind>(m_bound_kind); }
             bool is_atom() const { return m_atom; }

src/smt/theory_bv.h

@@ -42,7 +42,7 @@ namespace smt {
 
         class atom {
         public:
-            virtual ~atom() {}
+            virtual ~atom() = default;
             virtual bool is_bit() const = 0;
         };
 

src/smt/theory_seq.h

@@ -222,7 +222,7 @@ namespace smt {
 
         class apply {
         public:
-            virtual ~apply() {}
+            virtual ~apply() = default;
             virtual void operator()(theory_seq& th) = 0;
         };