Use bool literals in tao_idl

66 files changed, 135 insertions, 135 deletions

diff --git a/TAO/TAO_IDL/ast/ast_constant.cpp b/TAO/TAO_IDL/ast/ast_constant.cpp
index 52eab82cd74..9a92df4f4fc 100644
--- a/TAO/TAO_IDL/ast/ast_constant.cpp
+++ b/TAO/TAO_IDL/ast/ast_constant.cpp
@@ -135,7 +135,7 @@ AST_Constant::AST_Constant (AST_Expression::ExprType t,
               n),
     pd_constant_value (v),
     pd_et (t),
-    ifr_added_ (0)
+    ifr_added_ (false)
 {
 }
 
@@ -148,7 +148,7 @@ AST_Constant::AST_Constant (AST_Expression::ExprType t,
               n),
     pd_constant_value (v),
     pd_et (t),
-    ifr_added_ (0)
+    ifr_added_ (false)
 {
   // Avoids a truncation warning on MSVC when assigning a decimal
   // literal to a float constant. Must also check that the input
@@ -290,7 +290,7 @@ AST_Constant::enum_full_name ()
     {
       UTL_Scope * const s = this->defined_in ();
       AST_Decl  * const d = s->lookup_by_name (this->pd_constant_value->n (),
-                                               1);
+                                               true);
       return (d ? (ScopeAsDecl (d->defined_in ()))->name () : nullptr);
     }
   else
diff --git a/TAO/TAO_IDL/ast/ast_decl.cpp b/TAO/TAO_IDL/ast/ast_decl.cpp
index 5ad0e4bb1c1..e2803ef69af 100644
--- a/TAO/TAO_IDL/ast/ast_decl.cpp
+++ b/TAO/TAO_IDL/ast/ast_decl.cpp
@@ -895,16 +895,16 @@ AST_Decl::is_child (AST_Decl *s)
       AST_Decl *d = ScopeAsDecl (this->defined_in ());
       if (!d)
         {
-          return 0;
+          return false;
         }
 
       if (!ACE_OS::strcmp (d->full_name (), s->full_name ()))
         {
-          return 1;
+          return true;
         }
     }
 
-  return 0; // Not a child.
+  return false; // Not a child.
 }
 
 bool
diff --git a/TAO/TAO_IDL/ast/ast_exception.cpp b/TAO/TAO_IDL/ast/ast_exception.cpp
index f57812ca7eb..c7b023cbfb2 100644
--- a/TAO/TAO_IDL/ast/ast_exception.cpp
+++ b/TAO/TAO_IDL/ast/ast_exception.cpp
@@ -176,7 +176,7 @@ AST_Exception::in_recursion (ACE_Unbounded_Queue<AST_Type *> &list)
   // Not in recursion.
   if (self_test)
     this->in_recursion_ = 0;
-  return 0; //this->in_recursion_;
+  return false; //this->in_recursion_;
 }
 
 // Dump this AST_Exception node to the ostream o.
diff --git a/TAO/TAO_IDL/ast/ast_expression.cpp b/TAO/TAO_IDL/ast/ast_expression.cpp
index 781a35d2a72..4471118069d 100644
--- a/TAO/TAO_IDL/ast/ast_expression.cpp
+++ b/TAO/TAO_IDL/ast/ast_expression.cpp
@@ -1604,9 +1604,9 @@ incompatible_types (AST_Expression::ExprType t1,
         case AST_Expression::EV_ulonglong:
         case AST_Expression::EV_octet:
         case AST_Expression::EV_bool:
-          return 0;
+          return false;
         default:
-          return 1;
+          return true;
       }
     case AST_Expression::EV_float:
     case AST_Expression::EV_double:
@@ -1616,9 +1616,9 @@ incompatible_types (AST_Expression::ExprType t1,
         case AST_Expression::EV_float:
         case AST_Expression::EV_double:
         case AST_Expression::EV_longdouble:
-          return 0;
+          return false;
         default:
-          return 1;
+          return true;
       }
     case AST_Expression::EV_fixed:
       return t2 != AST_Expression::EV_fixed;
@@ -1632,7 +1632,7 @@ incompatible_types (AST_Expression::ExprType t1,
     case AST_Expression::EV_void:
     case AST_Expression::EV_none:
     default:
-      return 0;
+      return false;
   }
 }
 
@@ -2540,8 +2540,8 @@ AST_Expression::type_mismatch (AST_Expression::ExprType t)
       return incompatible_types (this->pd_ev->et, t);
     }
 
-  bool v1_mismatch = 0;
-  bool v2_mismatch = 0;
+  bool v1_mismatch = false;
+  bool v2_mismatch = false;
 
   if (this->pd_v1 != nullptr)
     {
@@ -2567,7 +2567,7 @@ AST_Expression::check_and_coerce (AST_Expression::ExprType t,
     {
       AST_Decl *enum_val =
         idl_global->scopes ().top_non_null ()->lookup_by_name (this->pd_n,
-                                                               1);
+                                                               true);
 
       if (enum_val != nullptr)
         {
diff --git a/TAO/TAO_IDL/ast/ast_interface.cpp b/TAO/TAO_IDL/ast/ast_interface.cpp
index 45558733013..0ded8e138f0 100644
--- a/TAO/TAO_IDL/ast/ast_interface.cpp
+++ b/TAO/TAO_IDL/ast/ast_interface.cpp
@@ -412,7 +412,7 @@ AST_Interface::fwd_redefinition_helper (AST_Interface *&i,
 void
 AST_Interface::redef_clash_populate_r (AST_Type *t)
 {
-  if (this->insert_non_dup (t, 0) == 0)
+  if (this->insert_non_dup (t, false) == 0)
     {
       return;
     }
diff --git a/TAO/TAO_IDL/ast/ast_module.cpp b/TAO/TAO_IDL/ast/ast_module.cpp
index 53645653611..feb4facbaa5 100644
--- a/TAO/TAO_IDL/ast/ast_module.cpp
+++ b/TAO/TAO_IDL/ast/ast_module.cpp
@@ -105,7 +105,7 @@ AST_Decl::NodeType const
 AST_Module::AST_Module (UTL_ScopedName *n, AST_Module *previous)
   : AST_Decl (AST_Decl::NT_module, n),
     UTL_Scope (AST_Decl::NT_module),
-    pd_has_nested_valuetype_ (0),
+    pd_has_nested_valuetype_ (false),
     previous_opening_ (previous),
     last_in_same_parent_scope_ (this),
     from_inst_ (nullptr),
@@ -168,7 +168,7 @@ AST_Module::set_has_nested_valuetype ()
         }
     }
 
-  this->pd_has_nested_valuetype_ = 1;
+  this->pd_has_nested_valuetype_ = true;
 }
 
 bool
diff --git a/TAO/TAO_IDL/ast/ast_type.cpp b/TAO/TAO_IDL/ast/ast_type.cpp
index 08c9d0059f9..282635fe6f9 100644
--- a/TAO/TAO_IDL/ast/ast_type.cpp
+++ b/TAO/TAO_IDL/ast/ast_type.cpp
@@ -81,10 +81,10 @@ AST_Type::AST_Type (AST_Decl::NodeType nt,
   : COMMON_Base (),
     AST_Decl (nt,
               n),
-    ifr_added_ (0),
-    ifr_fwd_added_ (0),
+    ifr_added_ (false),
+    ifr_fwd_added_ (false),
     size_type_ (AST_Type::SIZE_UNKNOWN),
-    has_constructor_ (0),
+    has_constructor_ (false),
     nested_type_name_ (nullptr),
     in_recursion_ (-1),
     recursing_in_legal_pk_ (false)
@@ -140,7 +140,7 @@ bool
 AST_Type::in_recursion (ACE_Unbounded_Queue<AST_Type *> & /*list*/)
 {
   // By default we are not involved in recursion.
-  return 0;
+  return false;
 }
 
 bool
diff --git a/TAO/TAO_IDL/ast/ast_union.cpp b/TAO/TAO_IDL/ast/ast_union.cpp
index 34bb18159a8..08606bab3db 100644
--- a/TAO/TAO_IDL/ast/ast_union.cpp
+++ b/TAO/TAO_IDL/ast/ast_union.cpp
@@ -304,7 +304,7 @@ AST_Union::in_recursion (ACE_Unbounded_Queue<AST_Type *> &list)
   // Not in recursion.
   if (self_test)
     this->in_recursion_ = 0;
-  return 0;
+  return false;
 }
 
 // Look up the default branch in union.
@@ -686,7 +686,7 @@ AST_Union::compute_default_value ()
       this->default_value_.u.wchar_val = 0;
       break;
     case AST_Expression::EV_bool:
-      this->default_value_.u.bool_val = 0;
+      this->default_value_.u.bool_val = false;
       break;
     case AST_Expression::EV_enum:
       this->default_value_.u.enum_val = 0;
diff --git a/TAO/TAO_IDL/be/be_codegen.cpp b/TAO/TAO_IDL/be/be_codegen.cpp
index 6b2859ef63a..876c01a32e2 100644
--- a/TAO/TAO_IDL/be/be_codegen.cpp
+++ b/TAO/TAO_IDL/be/be_codegen.cpp
@@ -378,7 +378,7 @@ TAO_CodeGen::start_client_stubs (const char *fname)
       // header file.
       *this->client_stubs_ << "\n\n#if !defined (__ACE_INLINE__)";
       *this->client_stubs_ << "\n#include \""
-                           << be_global->be_get_client_inline_fname (1)
+                           << be_global->be_get_client_inline_fname (true)
                            << "\"";
       *this->client_stubs_ << "\n#endif /* !defined INLINE */";
     }
@@ -498,7 +498,7 @@ TAO_CodeGen::start_server_header (const char *fname)
       UTL_String idl_name_str (idl_name);
 
       char const * const server_hdr =
-        BE_GlobalData::be_get_server_hdr (&idl_name_str, 1);
+        BE_GlobalData::be_get_server_hdr (&idl_name_str, true);
 
       idl_name_str.destroy ();
 
@@ -655,7 +655,7 @@ TAO_CodeGen::start_server_skeletons (const char *fname)
   // Generate the include statement for the server header.
   *this->server_skeletons_
     << "\n#include \""
-    << be_global->be_get_server_hdr_fname (1)
+    << be_global->be_get_server_hdr_fname (true)
     << "\"";
 
   this->gen_skel_src_includes ();
@@ -956,7 +956,7 @@ TAO_CodeGen::start_anyop_source (const char *fname)
   // Generate the include statement for the client header. We just
   // need to put only the base names. Path info is not required.
   *this->anyop_source_ << "\n#include \""
-                       << be_global->be_get_anyop_header_fname (1)
+                       << be_global->be_get_anyop_header_fname (true)
                        << "\"";
 
   this->gen_typecode_includes (this->anyop_source_);
@@ -1608,7 +1608,7 @@ TAO_CodeGen::start_implementation_header (const char *fname)
                            "",
                            "_H_");
 
-  const char* server_hdr = BE_GlobalData::be_get_server_hdr_fname (1);
+  const char* server_hdr = BE_GlobalData::be_get_server_hdr_fname (true);
 
   *this->implementation_header_<< "#include \"" << server_hdr <<"\"";
 
@@ -1695,7 +1695,7 @@ TAO_CodeGen::end_client_header ()
       // Insert the code to include the inline file.
       *this->client_header_ << "#if defined (__ACE_INLINE__)\n";
       *this->client_header_ << "#include \""
-                            << be_global->be_get_client_inline_fname (1)
+                            << be_global->be_get_client_inline_fname (true)
                             << "\"\n";
       *this->client_header_ << "#endif /* defined INLINE */\n\n";
     }
@@ -1838,7 +1838,7 @@ TAO_CodeGen::end_server_template_header ()
       << be_nl_2 << "#if defined (ACE_TEMPLATES_REQUIRE_SOURCE)";
   *this->server_template_header_
       << be_nl << "#include \""
-      << be_global->be_get_server_template_skeleton_fname (1)
+      << be_global->be_get_server_template_skeleton_fname (true)
       << "\"";
   *this->server_template_header_ << be_nl
       << "#endif /* defined REQUIRED SOURCE */";
@@ -1848,7 +1848,7 @@ TAO_CodeGen::end_server_template_header ()
       << be_nl_2 << "#if defined (ACE_TEMPLATES_REQUIRE_PRAGMA)";
   *this->server_template_header_
       << be_nl << "#pragma implementation (\""
-      << be_global->be_get_server_template_skeleton_fname (1)
+      << be_global->be_get_server_template_skeleton_fname (true)
       << "\")";
   *this->server_template_header_ << be_nl
       << "#endif /* defined REQUIRED PRAGMA */";
@@ -2578,7 +2578,7 @@ TAO_CodeGen::gen_stub_hdr_includes ()
               UTL_String idl_name_str = idl_name;
 
               char const * const anyop_hdr =
-                BE_GlobalData::be_get_anyop_header (&idl_name_str, 1);
+                BE_GlobalData::be_get_anyop_header (&idl_name_str, true);
 
               idl_name_str.destroy ();
 
diff --git a/TAO/TAO_IDL/be/be_eventtype.cpp b/TAO/TAO_IDL/be/be_eventtype.cpp
index 8ca3b873ff4..6b84169bffc 100644
--- a/TAO/TAO_IDL/be/be_eventtype.cpp
+++ b/TAO/TAO_IDL/be/be_eventtype.cpp
@@ -27,7 +27,7 @@ be_eventtype::be_eventtype (UTL_ScopedName *n,
                             bool abstract,
                             bool truncatable,
                             bool custom)
-  : COMMON_Base (0,
+  : COMMON_Base (false,
                  abstract),
     AST_Decl (AST_Decl::NT_eventtype,
               n),
@@ -39,7 +39,7 @@ be_eventtype::be_eventtype (UTL_ScopedName *n,
                    n_inherits,
                    inherits_flat,
                    n_inherits_flat,
-                   0,
+                   false,
                    abstract),
     be_scope (AST_Decl::NT_eventtype),
     be_decl (AST_Decl::NT_eventtype,
@@ -51,7 +51,7 @@ be_eventtype::be_eventtype (UTL_ScopedName *n,
                   n_inherits,
                   inherits_flat,
                   n_inherits_flat,
-                  0,
+                  false,
                   abstract),
     AST_ValueType (n,
                    inherits,
diff --git a/TAO/TAO_IDL/be/be_factory.cpp b/TAO/TAO_IDL/be/be_factory.cpp
index e1c1f936b2f..9aa2fb1d5e5 100644
--- a/TAO/TAO_IDL/be/be_factory.cpp
+++ b/TAO/TAO_IDL/be/be_factory.cpp
@@ -23,8 +23,8 @@
 #include "global_extern.h"
 
 be_factory::be_factory (UTL_ScopedName *n)
-  : COMMON_Base (1,
-                 0), //@@ Always local, never abstract
+  : COMMON_Base (true,
+                 false), //@@ Always local, never abstract
     AST_Decl (AST_Decl::NT_factory,
               n),
     UTL_Scope (AST_Decl::NT_factory),
@@ -60,7 +60,7 @@ be_factory::be_add_argument (AST_Argument *arg)
 {
   this->add_to_scope (arg);
   this->add_to_referenced (arg,
-                           0,
+                           false,
                            nullptr);
   return arg;
 }
diff --git a/TAO/TAO_IDL/be/be_finder.cpp b/TAO/TAO_IDL/be/be_finder.cpp
index 229df018592..43416cfdf60 100644
--- a/TAO/TAO_IDL/be/be_finder.cpp
+++ b/TAO/TAO_IDL/be/be_finder.cpp
@@ -15,8 +15,8 @@
 #include "be_visitor.h"
 
 be_finder::be_finder (UTL_ScopedName *n)
-  : COMMON_Base (1,
-                 0), //@@ Always local, never abstract
+  : COMMON_Base (true,
+                 false), //@@ Always local, never abstract
     AST_Decl (AST_Decl::NT_finder,
               n),
     UTL_Scope (AST_Decl::NT_finder),
diff --git a/TAO/TAO_IDL/be/be_global.cpp b/TAO/TAO_IDL/be/be_global.cpp
index 7b93bf1e9ba..2aeaa3f633b 100644
--- a/TAO/TAO_IDL/be/be_global.cpp
+++ b/TAO/TAO_IDL/be/be_global.cpp
@@ -96,7 +96,7 @@ BE_GlobalData::BE_GlobalData ()
     any_support_ (true),
     cdr_support_ (true),
     tc_support_ (true),
-    obv_opt_accessor_ (0),
+    obv_opt_accessor_ (false),
     gen_impl_files_ (false),
     gen_impl_debug_info_ (false),
     gen_copy_ctor_ (false),
@@ -3420,7 +3420,7 @@ BE_GlobalData::parse_args (long &i, char **av)
         else if (av[i][2] == 't')
           {
             // Optimized typecode generation.
-            be_global->opt_tc (1);
+            be_global->opt_tc (true);
           }
         else if (av[i][2] == 'p')
           {
@@ -3488,7 +3488,7 @@ BE_GlobalData::parse_args (long &i, char **av)
             size_t j;
             size_t k = i;
             // Generate implementation files.
-            be_global->gen_impl_files (1);
+            be_global->gen_impl_files (true);
 
             for (j = 0; j < options; ++j)
               {
diff --git a/TAO/TAO_IDL/be/be_operation.cpp b/TAO/TAO_IDL/be/be_operation.cpp
index 60fdf5067fd..012bc7bdd08 100644
--- a/TAO/TAO_IDL/be/be_operation.cpp
+++ b/TAO/TAO_IDL/be/be_operation.cpp
@@ -86,7 +86,7 @@ be_operation::be_add_argument (AST_Argument *arg)
 {
   this->add_to_scope (arg);
   this->add_to_referenced (arg,
-                           0,
+                           false,
                            nullptr);
   return arg;
 }
diff --git a/TAO/TAO_IDL/be/be_util.cpp b/TAO/TAO_IDL/be/be_util.cpp
index 980ab36b945..cc605a4e5c1 100644
--- a/TAO/TAO_IDL/be/be_util.cpp
+++ b/TAO/TAO_IDL/be/be_util.cpp
@@ -279,7 +279,7 @@ be_util::prep_be_arg (char *s)
         }
       else if (ACE_OS::strstr (arg, obv_opt_accessor) == arg)
         {
-          be_global->obv_opt_accessor (1);
+          be_global->obv_opt_accessor (true);
         }
       else if (ACE_OS::strstr (arg, ciao_container_type) == arg)
         {
diff --git a/TAO/TAO_IDL/be/be_valuetype.cpp b/TAO/TAO_IDL/be/be_valuetype.cpp
index d924ac798e0..02dcf8f8228 100644
--- a/TAO/TAO_IDL/be/be_valuetype.cpp
+++ b/TAO/TAO_IDL/be/be_valuetype.cpp
@@ -37,7 +37,7 @@ be_valuetype::be_valuetype (UTL_ScopedName *n,
                             bool abstract,
                             bool truncatable,
                             bool custom)
-  : COMMON_Base (0,
+  : COMMON_Base (false,
                  abstract),
     AST_Decl (AST_Decl::NT_valuetype,
               n),
@@ -49,7 +49,7 @@ be_valuetype::be_valuetype (UTL_ScopedName *n,
                    n_inherits,
                    inherits_flat,
                    n_inherits_flat,
-                   0,
+                   false,
                    abstract),
     be_scope (AST_Decl::NT_valuetype),
     be_decl (AST_Decl::NT_valuetype,
@@ -61,7 +61,7 @@ be_valuetype::be_valuetype (UTL_ScopedName *n,
                   n_inherits,
                   inherits_flat,
                   n_inherits_flat,
-                  0,
+                  false,
                   abstract),
     AST_ValueType (n,
                    inherits,
@@ -197,7 +197,7 @@ be_valuetype::determine_factory_style ()
 
   // Check whether we have at least one operation or not.
   bool have_operation = this->have_operation ();
-  bool have_factory = 0;
+  bool have_factory = false;
 
   // Try only our own scope.
   if (this->nmembers () > 0)
@@ -225,7 +225,7 @@ be_valuetype::determine_factory_style ()
 
           if (node_type == AST_Decl::NT_factory)
             {
-              have_factory = 1;
+              have_factory = true;
               break;
             }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_arg_traits.cpp b/TAO/TAO_IDL/be/be_visitor_arg_traits.cpp
index 67a02e82e40..c759000c029 100644
--- a/TAO/TAO_IDL/be/be_visitor_arg_traits.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_arg_traits.cpp
@@ -1212,7 +1212,7 @@ be_visitor_arg_traits::generated (be_decl *node) const
           case TAO_CodeGen::TAO_ROOT_SH:
             return node->srv_arg_traits_gen ();
           default:
-            return 0;
+            return false;
         }
     }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_array/any_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_array/any_op_ch.cpp
index 67a4d2d56bf..ed5cb8e796f 100644
--- a/TAO/TAO_IDL/be/be_visitor_array/any_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_array/any_op_ch.cpp
@@ -45,6 +45,6 @@ be_visitor_array_any_op_ch::visit_array (be_array *node)
 
   *os << be_global->core_versioning_end () << be_nl;
 
-  node->cli_hdr_any_op_gen (1);
+  node->cli_hdr_any_op_gen (true);
   return 0;
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_array/any_op_cs.cpp b/TAO/TAO_IDL/be/be_visitor_array/any_op_cs.cpp
index 6f37294187f..cd6b9c256c3 100644
--- a/TAO/TAO_IDL/be/be_visitor_array/any_op_cs.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_array/any_op_cs.cpp
@@ -115,6 +115,6 @@ be_visitor_array_any_op_cs::visit_array (be_array *node)
 
   *os << be_global->core_versioning_end () << be_nl;
 
-  node->cli_stub_any_op_gen (1);
+  node->cli_stub_any_op_gen (true);
   return 0;
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_array/cdr_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_array/cdr_op_ch.cpp
index 7d9a2616112..b65ee3bf8c8 100644
--- a/TAO/TAO_IDL/be/be_visitor_array/cdr_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_array/cdr_op_ch.cpp
@@ -129,6 +129,6 @@ be_visitor_array_cdr_op_ch::visit_array (be_array *node)
 
   *os << be_global->core_versioning_end ();
 
-  node->cli_hdr_cdr_op_gen (1);
+  node->cli_hdr_cdr_op_gen (true);
   return 0;
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_connector/facet_ami_exh.cpp b/TAO/TAO_IDL/be/be_visitor_connector/facet_ami_exh.cpp
index e4ed07fbbcb..0e39a4dd453 100644
--- a/TAO/TAO_IDL/be/be_visitor_connector/facet_ami_exh.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_connector/facet_ami_exh.cpp
@@ -83,8 +83,8 @@ be_visitor_facet_ami_exh::visit_attribute (be_attribute *node)
   be_operation get_op (node->field_type (),
                        AST_Operation::OP_noflags,
                        node->name (),
-                       0,
-                       0);
+                       false,
+                       false);
 
   get_op.set_name ((UTL_IdList *) node->name ()->copy ());
   if (this->visit_operation (&get_op) == -1)
@@ -120,8 +120,8 @@ be_visitor_facet_ami_exh::visit_attribute (be_attribute *node)
   be_operation set_op (&rt,
                        AST_Operation::OP_noflags,
                        node->name (),
-                       0,
-                       0);
+                       false,
+                       false);
 
   set_op.set_name ((UTL_IdList *) node->name ()->copy ());
   set_op.be_add_argument (arg);
diff --git a/TAO/TAO_IDL/be/be_visitor_connector/facet_ami_exs.cpp b/TAO/TAO_IDL/be/be_visitor_connector/facet_ami_exs.cpp
index 7d865123259..a04a4d3a646 100644
--- a/TAO/TAO_IDL/be/be_visitor_connector/facet_ami_exs.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_connector/facet_ami_exs.cpp
@@ -74,8 +74,8 @@ be_visitor_facet_ami_exs::visit_attribute (be_attribute *node)
   be_operation get_op (node->field_type (),
                          AST_Operation::OP_noflags,
                          node->name (),
-                         0,
-                         0);
+                         false,
+                         false);
   get_op.set_name ((UTL_IdList *) node->name ()->copy ());
   if (this->visit_operation (&get_op) == -1)
     {
@@ -111,8 +111,8 @@ be_visitor_facet_ami_exs::visit_attribute (be_attribute *node)
   be_operation set_op (&rt,
                        AST_Operation::OP_noflags,
                        node->name (),
-                       0,
-                       0);
+                       false,
+                       false);
 
   set_op.set_name ((UTL_IdList *) node->name ()->copy ());
   set_op.be_add_argument (arg);
diff --git a/TAO/TAO_IDL/be/be_visitor_context.cpp b/TAO/TAO_IDL/be/be_visitor_context.cpp
index d56235baa5f..15cc1cd7069 100644
--- a/TAO/TAO_IDL/be/be_visitor_context.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_context.cpp
@@ -23,8 +23,8 @@ be_visitor_context::be_visitor_context ()
     alias_ (nullptr),
     tdef_ (nullptr),
     attr_ (nullptr),
-    exception_ (0),
-    comma_ (0),
+    exception_ (false),
+    comma_ (false),
     interface_ (nullptr)
 {
 }
@@ -85,8 +85,8 @@ be_visitor_context::reset ()
   this->alias_ = nullptr;
   this->tdef_ = nullptr;
   this->attr_ = nullptr;
-  this->exception_ = 0;
-  this->comma_ = 0;
+  this->exception_ = false;
+  this->comma_ = false;
   this->interface_ = nullptr;
   this->template_args_ = nullptr;
   this->template_params_ = nullptr;
diff --git a/TAO/TAO_IDL/be/be_visitor_enum/any_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_enum/any_op_ch.cpp
index cf94a17602c..1a2c6dc7fd4 100644
--- a/TAO/TAO_IDL/be/be_visitor_enum/any_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_enum/any_op_ch.cpp
@@ -95,6 +95,6 @@ be_visitor_enum_any_op_ch::visit_enum (be_enum *node)
       *os << "\n\n#endif";
     }
 
-  node->cli_hdr_any_op_gen (1);
+  node->cli_hdr_any_op_gen (true);
   return 0;
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_enum/any_op_cs.cpp b/TAO/TAO_IDL/be/be_visitor_enum/any_op_cs.cpp
index 401a69ae418..f6d8c7f5b35 100644
--- a/TAO/TAO_IDL/be/be_visitor_enum/any_op_cs.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_enum/any_op_cs.cpp
@@ -171,6 +171,6 @@ be_visitor_enum_any_op_cs::visit_enum (be_enum *node)
       *os << "\n\n#endif";
     }
 
-  node->cli_stub_any_op_gen (1);
+  node->cli_stub_any_op_gen (true);
   return 0;
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_enum/enum_ch.cpp b/TAO/TAO_IDL/be/be_visitor_enum/enum_ch.cpp
index d8c642eed23..32f9694a2ba 100644
--- a/TAO/TAO_IDL/be/be_visitor_enum/enum_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_enum/enum_ch.cpp
@@ -38,7 +38,7 @@ be_visitor_enum_ch::visit_enum (be_enum *node)
   TAO_OutStream *os = this->ctx_->stream ();
 
   // Comma to be generated by the scope visitor.
-  this->ctx_->comma (1);
+  this->ctx_->comma (true);
 
   *os << be_nl_2 << "// TAO_IDL - Generated from" << be_nl
       << "// " << __FILE__ << ":" << __LINE__ << be_nl_2;
diff --git a/TAO/TAO_IDL/be/be_visitor_exception/any_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_exception/any_op_ch.cpp
index 21e102f68b6..8d19cc74442 100644
--- a/TAO/TAO_IDL/be/be_visitor_exception/any_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_exception/any_op_ch.cpp
@@ -106,7 +106,7 @@ be_visitor_exception_any_op_ch::visit_exception (be_exception *node)
                         -1);
     }
 
-  node->cli_hdr_any_op_gen (1);
+  node->cli_hdr_any_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_exception/any_op_cs.cpp b/TAO/TAO_IDL/be/be_visitor_exception/any_op_cs.cpp
index 3bbd359fa5e..c38649bd11a 100644
--- a/TAO/TAO_IDL/be/be_visitor_exception/any_op_cs.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_exception/any_op_cs.cpp
@@ -258,7 +258,7 @@ be_visitor_exception_any_op_cs::visit_exception (be_exception *node)
                         -1);
     }
 
-  node->cli_stub_any_op_gen (1);
+  node->cli_stub_any_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_exception/cdr_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_exception/cdr_op_ch.cpp
index 7c8541de940..d190c985d5e 100644
--- a/TAO/TAO_IDL/be/be_visitor_exception/cdr_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_exception/cdr_op_ch.cpp
@@ -67,6 +67,6 @@ be_visitor_exception_cdr_op_ch::visit_exception (be_exception *node)
                         -1);
     }
 
-  node->cli_hdr_cdr_op_gen (1);
+  node->cli_hdr_cdr_op_gen (true);
   return 0;
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_exception/cdr_op_cs.cpp b/TAO/TAO_IDL/be/be_visitor_exception/cdr_op_cs.cpp
index 65897a6192a..eb400f07815 100644
--- a/TAO/TAO_IDL/be/be_visitor_exception/cdr_op_cs.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_exception/cdr_op_cs.cpp
@@ -177,7 +177,7 @@ be_visitor_exception_cdr_op_cs::visit_exception (be_exception *node)
 
   *os << be_global->core_versioning_end () << be_nl;
 
-  node->cli_stub_cdr_op_gen (1);
+  node->cli_stub_cdr_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_exception/exception_ch.cpp b/TAO/TAO_IDL/be/be_visitor_exception/exception_ch.cpp
index c29bd84da8f..58ecc114dd1 100644
--- a/TAO/TAO_IDL/be/be_visitor_exception/exception_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_exception/exception_ch.cpp
@@ -126,6 +126,6 @@ int be_visitor_exception_ch::visit_exception (be_exception *node)
         }
     }
 
-  node->cli_hdr_gen (1);
+  node->cli_hdr_gen (true);
   return 0;
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_interface/any_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_interface/any_op_ch.cpp
index 4fbc6485a02..b95446f3f0d 100644
--- a/TAO/TAO_IDL/be/be_visitor_interface/any_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_interface/any_op_ch.cpp
@@ -117,7 +117,7 @@ be_visitor_interface_any_op_ch::visit_interface (be_interface *node)
     }
 
 
-  node->cli_hdr_any_op_gen (1);
+  node->cli_hdr_any_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_interface/any_op_cs.cpp b/TAO/TAO_IDL/be/be_visitor_interface/any_op_cs.cpp
index 9d36bece90e..b65572712f8 100644
--- a/TAO/TAO_IDL/be/be_visitor_interface/any_op_cs.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_interface/any_op_cs.cpp
@@ -251,7 +251,7 @@ be_visitor_interface_any_op_cs::visit_interface (be_interface *node)
                          "codegen for scope failed\n"), -1);
     }
 
-  node->cli_stub_any_op_gen (1);
+  node->cli_stub_any_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_interface/cdr_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_interface/cdr_op_ch.cpp
index 5be866512d4..2453440ca1f 100644
--- a/TAO/TAO_IDL/be/be_visitor_interface/cdr_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_interface/cdr_op_ch.cpp
@@ -74,7 +74,7 @@ be_visitor_interface_cdr_op_ch::visit_interface (be_interface *node)
     }
 
   this->ctx_->sub_state (TAO_CodeGen::TAO_SUB_STATE_UNKNOWN);
-  node->cli_hdr_cdr_op_gen (1);
+  node->cli_hdr_cdr_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_interface/cdr_op_cs.cpp b/TAO/TAO_IDL/be/be_visitor_interface/cdr_op_cs.cpp
index 071bd2eab0d..a9ac02c8953 100644
--- a/TAO/TAO_IDL/be/be_visitor_interface/cdr_op_cs.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_interface/cdr_op_cs.cpp
@@ -137,7 +137,7 @@ be_visitor_interface_cdr_op_cs::visit_interface (be_interface *node)
 
   *os << be_global->core_versioning_end () << be_nl;
 
-  node->cli_stub_cdr_op_gen (1);
+  node->cli_stub_cdr_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_interface_fwd/any_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_interface_fwd/any_op_ch.cpp
index fcccf6da943..7136b8cce2e 100644
--- a/TAO/TAO_IDL/be/be_visitor_interface_fwd/any_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_interface_fwd/any_op_ch.cpp
@@ -106,6 +106,6 @@ be_visitor_interface_fwd_any_op_ch::visit_interface_fwd (
       *os << "\n\n#endif";
     }
 
-  node->cli_hdr_any_op_gen (1);
+  node->cli_hdr_any_op_gen (true);
   return 0;
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_interface_fwd/cdr_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_interface_fwd/cdr_op_ch.cpp
index f6b68cab462..1af551c91c2 100644
--- a/TAO/TAO_IDL/be/be_visitor_interface_fwd/cdr_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_interface_fwd/cdr_op_ch.cpp
@@ -57,6 +57,6 @@ be_visitor_interface_fwd_cdr_op_ch::visit_interface_fwd (be_interface_fwd *node)
 
   *os << be_global->core_versioning_end () << be_nl;
 
-  node->cli_hdr_cdr_op_gen (1);
+  node->cli_hdr_cdr_op_gen (true);
   return 0;
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_sequence/cdr_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_sequence/cdr_op_ch.cpp
index 8098e494498..0dd0d3522b7 100644
--- a/TAO/TAO_IDL/be/be_visitor_sequence/cdr_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_sequence/cdr_op_ch.cpp
@@ -128,6 +128,6 @@ be_visitor_sequence_cdr_op_ch::visit_sequence (be_sequence *node)
           << node->flat_name () << "_H_ */";
     }
 
-  node->cli_hdr_cdr_op_gen (1);
+  node->cli_hdr_cdr_op_gen (true);
   return 0;
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_sequence/cdr_op_cs.cpp b/TAO/TAO_IDL/be/be_visitor_sequence/cdr_op_cs.cpp
index 7589ff6fb06..e54fa0d0c03 100644
--- a/TAO/TAO_IDL/be/be_visitor_sequence/cdr_op_cs.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_sequence/cdr_op_cs.cpp
@@ -203,7 +203,7 @@ be_visitor_sequence_cdr_op_cs::visit_sequence (be_sequence *node)
       << "#endif /* _TAO_CDR_OP_"
       << node->flat_name () << "_CPP_ */";
 
-  node->cli_stub_cdr_op_gen (1);
+  node->cli_stub_cdr_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_structure/any_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_structure/any_op_ch.cpp
index 53700954348..df8603b9463 100644
--- a/TAO/TAO_IDL/be/be_visitor_structure/any_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_structure/any_op_ch.cpp
@@ -110,7 +110,7 @@ be_visitor_structure_any_op_ch::visit_structure (be_structure *node)
                         -1);
     }
 
-  node->cli_hdr_any_op_gen (1);
+  node->cli_hdr_any_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_structure/any_op_cs.cpp b/TAO/TAO_IDL/be/be_visitor_structure/any_op_cs.cpp
index 3471d0cd6dd..aa234e85fa4 100644
--- a/TAO/TAO_IDL/be/be_visitor_structure/any_op_cs.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_structure/any_op_cs.cpp
@@ -227,7 +227,7 @@ be_visitor_structure_any_op_cs::visit_structure (be_structure *node)
                         -1);
     }
 
-  node->cli_stub_any_op_gen (1);
+  node->cli_stub_any_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_typedef/any_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_typedef/any_op_ch.cpp
index 2f568927ad2..4d3811f2e0a 100644
--- a/TAO/TAO_IDL/be/be_visitor_typedef/any_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_typedef/any_op_ch.cpp
@@ -125,7 +125,7 @@ be_visitor_typedef_any_op_ch::visit_typedef (be_typedef *node)
       this->ctx_->tdef (nullptr); // reset
     }
 
-  node->cli_hdr_any_op_gen (1);
+  node->cli_hdr_any_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_typedef/cdr_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_typedef/cdr_op_ch.cpp
index c57d759a548..0865d98dc57 100644
--- a/TAO/TAO_IDL/be/be_visitor_typedef/cdr_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_typedef/cdr_op_ch.cpp
@@ -125,7 +125,7 @@ be_visitor_typedef_cdr_op_ch::visit_typedef (be_typedef *node)
       this->ctx_->tdef (nullptr);
     }
 
-  node->cli_hdr_cdr_op_gen (1);
+  node->cli_hdr_cdr_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_typedef/cdr_op_cs.cpp b/TAO/TAO_IDL/be/be_visitor_typedef/cdr_op_cs.cpp
index 1f43246e813..9045ff559a8 100644
--- a/TAO/TAO_IDL/be/be_visitor_typedef/cdr_op_cs.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_typedef/cdr_op_cs.cpp
@@ -121,7 +121,7 @@ be_visitor_typedef_cdr_op_cs::visit_typedef (be_typedef *node)
       this->ctx_->tdef (nullptr); // reset
     }
 
-  node->cli_stub_cdr_op_gen (1);
+  node->cli_stub_cdr_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_union/any_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_union/any_op_ch.cpp
index 96c2289b6c6..b8b2a3eedc9 100644
--- a/TAO/TAO_IDL/be/be_visitor_union/any_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_union/any_op_ch.cpp
@@ -131,7 +131,7 @@ be_visitor_union_any_op_ch::visit_union (be_union *node)
                         -1);
     }
 
-  node->cli_hdr_any_op_gen (1);
+  node->cli_hdr_any_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_union/any_op_cs.cpp b/TAO/TAO_IDL/be/be_visitor_union/any_op_cs.cpp
index 5df518c35d3..d0c95024982 100644
--- a/TAO/TAO_IDL/be/be_visitor_union/any_op_cs.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_union/any_op_cs.cpp
@@ -247,7 +247,7 @@ be_visitor_union_any_op_cs::visit_union (be_union *node)
                         -1);
     }
 
-  node->cli_stub_any_op_gen (1);
+  node->cli_stub_any_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_union/cdr_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_union/cdr_op_ch.cpp
index a4b2a4e1bad..142279b0dbf 100644
--- a/TAO/TAO_IDL/be/be_visitor_union/cdr_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_union/cdr_op_ch.cpp
@@ -91,6 +91,6 @@ be_visitor_union_cdr_op_ch::visit_union (be_union *node)
                         -1);
     }
 
-  node->cli_hdr_cdr_op_gen (1);
+  node->cli_hdr_cdr_op_gen (true);
   return 0;
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_valuebox/any_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_valuebox/any_op_ch.cpp
index 71fd4646168..7d17a24f206 100644
--- a/TAO/TAO_IDL/be/be_visitor_valuebox/any_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_valuebox/any_op_ch.cpp
@@ -102,6 +102,6 @@ be_visitor_valuebox_any_op_ch::visit_valuebox (be_valuebox *node)
       *os << "\n\n#endif";
     }
 
-  node->cli_hdr_any_op_gen (1);
+  node->cli_hdr_any_op_gen (true);
   return 0;
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_valuebox/any_op_cs.cpp b/TAO/TAO_IDL/be/be_visitor_valuebox/any_op_cs.cpp
index 6487b9870ab..082faf2daf5 100644
--- a/TAO/TAO_IDL/be/be_visitor_valuebox/any_op_cs.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_valuebox/any_op_cs.cpp
@@ -189,6 +189,6 @@ be_visitor_valuebox_any_op_cs::visit_valuebox (be_valuebox *node)
       *os << "\n\n#endif";
     }
 
-  node->cli_stub_any_op_gen (1);
+  node->cli_stub_any_op_gen (true);
   return 0;
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_valuebox/cdr_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_valuebox/cdr_op_ch.cpp
index ddf8989d506..30afffb23ee 100644
--- a/TAO/TAO_IDL/be/be_visitor_valuebox/cdr_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_valuebox/cdr_op_ch.cpp
@@ -50,6 +50,6 @@ be_visitor_valuebox_cdr_op_ch::visit_valuebox (be_valuebox *node)
 
   *os << be_global->core_versioning_end () << be_nl;
 
-  node->cli_hdr_cdr_op_gen (1);
+  node->cli_hdr_cdr_op_gen (true);
   return 0;
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_valuetype/any_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_valuetype/any_op_ch.cpp
index c84536d2103..e36744ab7c6 100644
--- a/TAO/TAO_IDL/be/be_visitor_valuetype/any_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_valuetype/any_op_ch.cpp
@@ -102,7 +102,7 @@ be_visitor_valuetype_any_op_ch::visit_valuetype (be_valuetype *node)
       *os << "\n\n#endif";
     }
 
-  node->cli_hdr_any_op_gen (1);
+  node->cli_hdr_any_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_valuetype/any_op_cs.cpp b/TAO/TAO_IDL/be/be_visitor_valuetype/any_op_cs.cpp
index 99b92890d4b..e12e0aea8cf 100644
--- a/TAO/TAO_IDL/be/be_visitor_valuetype/any_op_cs.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_valuetype/any_op_cs.cpp
@@ -207,7 +207,7 @@ be_visitor_valuetype_any_op_cs::visit_valuetype (be_valuetype *node)
       *os << "\n\n#endif";
     }
 
-  node->cli_stub_any_op_gen (1);
+  node->cli_stub_any_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_valuetype/cdr_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_valuetype/cdr_op_ch.cpp
index d2946a27aef..d25849117d9 100644
--- a/TAO/TAO_IDL/be/be_visitor_valuetype/cdr_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_valuetype/cdr_op_ch.cpp
@@ -87,7 +87,7 @@ be_visitor_valuetype_cdr_op_ch::visit_valuetype (be_valuetype *node)
       visitor.visit_valuetype (node);
     }
 
-  node->cli_hdr_cdr_op_gen (1);
+  node->cli_hdr_cdr_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/be/be_visitor_valuetype/field_ci.cpp b/TAO/TAO_IDL/be/be_visitor_valuetype/field_ci.cpp
index 114f3c01e56..e765dc4fd1a 100644
--- a/TAO/TAO_IDL/be/be_visitor_valuetype/field_ci.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_valuetype/field_ci.cpp
@@ -17,7 +17,7 @@ be_visitor_valuetype_field_ci::be_visitor_valuetype_field_ci (
     be_visitor_context *ctx
   )
   : be_visitor_decl (ctx),
-    in_obv_space_ (0)
+    in_obv_space_ (false)
 {
   setenclosings ("");
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_valuetype/field_cs.cpp b/TAO/TAO_IDL/be/be_visitor_valuetype/field_cs.cpp
index 09cc71e4896..5af33deb54b 100644
--- a/TAO/TAO_IDL/be/be_visitor_valuetype/field_cs.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_valuetype/field_cs.cpp
@@ -16,7 +16,7 @@
 be_visitor_valuetype_field_cs::be_visitor_valuetype_field_cs (
     be_visitor_context *ctx)
   : be_visitor_decl (ctx),
-    in_obv_space_ (0)
+    in_obv_space_ (false)
 {
   setenclosings ("");
 }
diff --git a/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype.cpp b/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype.cpp
index 2c5d3dde82d..c27d7532d4b 100644
--- a/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype.cpp
@@ -96,8 +96,8 @@ be_visitor_valuetype::visit_attribute (be_attribute *node)
   be_operation get_op (node->field_type (),
                        AST_Operation::OP_noflags,
                        node->name (),
-                       0,
-                       0);
+                       false,
+                       false);
 
   get_op.set_name ((UTL_IdList *) node->name ()->copy ());
 
@@ -138,8 +138,8 @@ be_visitor_valuetype::visit_attribute (be_attribute *node)
   be_operation set_op (&rt,
                        AST_Operation::OP_noflags,
                        node->name (),
-                       0,
-                       0);
+                       false,
+                       false);
 
   set_op.set_name ((UTL_IdList *) node->name ()->copy ());
   set_op.be_add_argument (arg);
diff --git a/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype_ci.cpp b/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype_ci.cpp
index 7e2d503bde4..9edfd2658a6 100644
--- a/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype_ci.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype_ci.cpp
@@ -17,7 +17,7 @@
 
 be_visitor_valuetype_ci::be_visitor_valuetype_ci (be_visitor_context *ctx)
   : be_visitor_valuetype (ctx),
-    opt_accessor_ (0)
+    opt_accessor_ (false)
 {
 }
 
@@ -35,7 +35,7 @@ be_visitor_valuetype_ci::visit_valuetype (be_valuetype *node)
 
   if (node->opt_accessor ())
     {
-      this->opt_accessor_ = 1;
+      this->opt_accessor_ = true;
     }
 
   TAO_OutStream *os = this->ctx_->stream ();
@@ -107,7 +107,7 @@ be_visitor_valuetype_ci::visit_field (be_field *node)
     {
       be_visitor_context ctx (*this->ctx_);
       be_visitor_valuetype_field_cs visitor (&ctx);
-      visitor.in_obv_space_ = 0;
+      visitor.in_obv_space_ = false;
       visitor.setenclosings ("ACE_INLINE ");
 
       if (visitor.visit_field (node) == -1)
diff --git a/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype_obv_ci.cpp b/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype_obv_ci.cpp
index e0b7151a6fe..05d34ef1a8a 100644
--- a/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype_obv_ci.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype_obv_ci.cpp
@@ -77,7 +77,7 @@ be_visitor_valuetype_obv_ci::visit_field (be_field *node)
   be_visitor_context new_ctx (*this->ctx_);
   be_visitor_valuetype_field_ci visitor (&new_ctx);
 
-  visitor.in_obv_space_ = 1;
+  visitor.in_obv_space_ = true;
 
   if (visitor.visit_field (node) == -1)
     {
diff --git a/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype_obv_cs.cpp b/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype_obv_cs.cpp
index 5282c12a4bd..32f2389daa2 100644
--- a/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype_obv_cs.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_valuetype/valuetype_obv_cs.cpp
@@ -190,7 +190,7 @@ be_visitor_valuetype_obv_cs::visit_field (be_field *node)
 {
   be_visitor_context ctx = (*this->ctx_);
   be_visitor_valuetype_field_cs visitor (&ctx);
-  visitor.in_obv_space_ = 1;
+  visitor.in_obv_space_ = true;
 
   if (visitor.visit_field (node) == -1)
     {
diff --git a/TAO/TAO_IDL/be/be_visitor_valuetype_fwd/any_op_ch.cpp b/TAO/TAO_IDL/be/be_visitor_valuetype_fwd/any_op_ch.cpp
index d20531abd8e..f2debe24349 100644
--- a/TAO/TAO_IDL/be/be_visitor_valuetype_fwd/any_op_ch.cpp
+++ b/TAO/TAO_IDL/be/be_visitor_valuetype_fwd/any_op_ch.cpp
@@ -115,7 +115,7 @@ be_visitor_valuetype_fwd_any_op_ch::visit_valuetype_fwd (
       *os << "\n\n#endif";
     }
 
-  node->cli_hdr_any_op_gen (1);
+  node->cli_hdr_any_op_gen (true);
   return 0;
 }
 
diff --git a/TAO/TAO_IDL/driver/drv_preproc.cpp b/TAO/TAO_IDL/driver/drv_preproc.cpp
index 0df91e8788a..3e02a5c4ac1 100644
--- a/TAO/TAO_IDL/driver/drv_preproc.cpp
+++ b/TAO/TAO_IDL/driver/drv_preproc.cpp
@@ -1211,7 +1211,7 @@ DRV_pre_proc (const char *myfile)
   // is often not enough. We determine
   // the required space and arg nr
   // dynamically here.
-  ACE_Process_Options cpp_options (1,       // Inherit environment.
+  ACE_Process_Options cpp_options (true,       // Inherit environment.
                                    DRV_cpp_calc_total_argsize (),
                                    16 * 1024,
                                    512,
diff --git a/TAO/TAO_IDL/fe/fe_utils.cpp b/TAO/TAO_IDL/fe/fe_utils.cpp
index 330dadec876..0279f5a5e0a 100644
--- a/TAO/TAO_IDL/fe/fe_utils.cpp
+++ b/TAO/TAO_IDL/fe/fe_utils.cpp
@@ -267,7 +267,7 @@ FE_Utils::create_uses_multiple_stuff (AST_Component *c,
   idl_global->scopes ().push (c);
 
   AST_Structure *connection =
-    idl_global->gen ()->create_structure (&sn, 0, 0);
+    idl_global->gen ()->create_structure (&sn, false, false);
 
   struct_id.destroy ();
 
@@ -329,8 +329,8 @@ FE_Utils::create_uses_multiple_stuff (AST_Component *c,
     idl_global->gen ()->create_sequence (bound_expr,
                                          connection,
                                          nullptr,
-                                         0,
-                                         0);
+                                         false,
+                                         false);
 
   ACE_CString seq_string (struct_name);
   seq_string += 's';
@@ -340,8 +340,8 @@ FE_Utils::create_uses_multiple_stuff (AST_Component *c,
   AST_Typedef *connections =
     idl_global->gen ()->create_typedef (sequence,
                                         &seq_name,
-                                        0,
-                                        0);
+                                        false,
+                                        false);
   seq_id.destroy ();
 
   (void) c->fe_add_typedef (connections);
diff --git a/TAO/TAO_IDL/fe/idl.tab.cpp b/TAO/TAO_IDL/fe/idl.tab.cpp
index 3bebb62ba5e..f87f408f96f 100644
--- a/TAO/TAO_IDL/fe/idl.tab.cpp
+++ b/TAO/TAO_IDL/fe/idl.tab.cpp
@@ -4486,8 +4486,8 @@ yyreduce:
           if (s != nullptr)
             {
               f = idl_global->gen ()->create_interface_fwd (&n,
-                                                            0,
-                                                            0);
+                                                            false,
+                                                            false);
               (void) s->fe_add_interface_fwd (f);
             }
 
@@ -4516,8 +4516,8 @@ yyreduce:
           if (s != nullptr)
             {
               f = idl_global->gen ()->create_interface_fwd (&n,
-                                                            1,
-                                                            0);
+                                                            true,
+                                                            false);
               (void) s->fe_add_interface_fwd (f);
             }
 
@@ -4546,8 +4546,8 @@ yyreduce:
           if (s != nullptr)
             {
               f = idl_global->gen ()->create_interface_fwd (&n,
-                                                            0,
-                                                            1);
+                                                            false,
+                                                            true);
               (void) s->fe_add_interface_fwd (f);
             }
 
@@ -7253,8 +7253,8 @@ yyreduce:
                                         &sn,
                                         array_dims->length (),
                                         array_dims,
-                                        0,
-                                        0
+                                        false,
+                                        false
                                       );
               array->base_type_annotations (*base_type_annotations);
               sn.destroy ();
@@ -10772,7 +10772,7 @@ yyerrlab:
 yyerrorlab:
   /* Pacify compilers when the user code never invokes YYERROR and the
      label yyerrorlab therefore never appears in user code.  */
-  if (0)
+  if (false)
     YYERROR;
 
   /* Do not reclaim the symbols of the rule whose action triggered
diff --git a/TAO/TAO_IDL/fe/idl.yy.cpp b/TAO/TAO_IDL/fe/idl.yy.cpp
index cb9debd488f..c919be1d965 100644
--- a/TAO/TAO_IDL/fe/idl.yy.cpp
+++ b/TAO/TAO_IDL/fe/idl.yy.cpp
@@ -1524,7 +1524,7 @@ YY_DECL
 
 #line 1528 "fe/idl.yy.cpp"
 
-    while ( /*CONSTCOND*/1 )        /* loops until end-of-file is reached */
+    while ( /*CONSTCOND*/true )        /* loops until end-of-file is reached */
         {
         yy_cp = (yy_c_buf_p);
 
@@ -4195,7 +4195,7 @@ idl_valid_version (char *s)
   // Nothing preceding decimal point.
   if (*s == '.')
     {
-      return 0;
+      return false;
     }
 
   char *minor = ACE_OS::strchr (s, '.');
@@ -4204,13 +4204,13 @@ idl_valid_version (char *s)
   if (minor == nullptr)
     {
       // No decimal point.
-      return 0;
+      return false;
     }
 
   if (*(minor + 1) == '\0')
     {
       // Nothing following decimal point.
-      return 0;
+      return false;
     }
 
   char *tmp = minor + 1;
@@ -4219,7 +4219,7 @@ idl_valid_version (char *s)
     {
       if (!isdigit (tmp[i]))
         {
-          return 0;
+          return false;
         }
     }
 
@@ -4229,7 +4229,7 @@ idl_valid_version (char *s)
     {
       if (!isdigit (s[i]))
         {
-          return 0;
+          return false;
         }
     }
 
@@ -4237,10 +4237,10 @@ idl_valid_version (char *s)
   if (ACE_OS::atoi (minor + 1) > ACE_UINT16_MAX
       || ACE_OS::atoi (s) > ACE_UINT16_MAX)
     {
-      return 0;
+      return false;
     }
 
-  return 1;
+  return true;
 }
 
 static AST_Decl *
diff --git a/TAO/TAO_IDL/util/utl_scope.cpp b/TAO/TAO_IDL/util/utl_scope.cpp
index c2079e47d8e..1ed63df688b 100644
--- a/TAO/TAO_IDL/util/utl_scope.cpp
+++ b/TAO/TAO_IDL/util/utl_scope.cpp
@@ -134,7 +134,7 @@ UTL_Scope::UTL_Scope ()
     pd_name_referenced (nullptr),
     pd_name_referenced_allocated (0),
     pd_name_referenced_used (0),
-    has_prefix_ (0),
+    has_prefix_ (false),
     which_pseudo_ (PSEUDO_ABSTRACTBASE)
 {
 }
@@ -153,7 +153,7 @@ UTL_Scope::UTL_Scope (AST_Decl::NodeType nt)
     pd_name_referenced (nullptr),
     pd_name_referenced_allocated (0),
     pd_name_referenced_used (0),
-    has_prefix_ (0),
+    has_prefix_ (false),
     which_pseudo_ (PSEUDO_ABSTRACTBASE)
 {
 }
diff --git a/TAO/TAO_IDL/util/utl_string.cpp b/TAO/TAO_IDL/util/utl_string.cpp
index 1939f4cd587..d9070dfa65f 100644
--- a/TAO/TAO_IDL/util/utl_string.cpp
+++ b/TAO/TAO_IDL/util/utl_string.cpp
@@ -224,7 +224,7 @@ UTL_String::destroy ()
   if (this->copy_taken)
     {
        ACE::strdelete (this->p_str);
-       this->copy_taken = 0;
+       this->copy_taken = false;
     }
   this->p_str = nullptr;
 }