Add some default initializers in the generated C++ code.

starseeker · cshorler · commit 61d34a352cc8 · 2022-06-11T17:40:25.000+01:00
diff --git a/src/exp2cxx/classes_attribute.c b/src/exp2cxx/classes_attribute.c
@@ -130,11 +130,24 @@ void DataMemberPrintAttr( Entity entity, Variable a, FILE * file ) {
             fprintf( stderr, "Warning: in entity %s, the type for attribute %s is not fully implemented\n", ENTITYget_name( entity ), attrnm );
         }
         if( TYPEis_entity( VARget_type( a ) ) ) {
-            fprintf( file, "        SDAI_Application_instance_ptr _%s;", attrnm );
+            fprintf( file, "        SDAI_Application_instance_ptr _%s = NULL;", attrnm );
         } else if( TYPEis_aggregate( VARget_type( a ) ) ) {
-            fprintf( file, "        %s_ptr _%s;", ctype, attrnm );
+            fprintf( file, "        %s_ptr _%s = NULL;", ctype, attrnm );
         } else {
-            fprintf( file, "        %s _%s;", ctype, attrnm );
+            Class_Of_Type class = TYPEget_type(VARget_type(a));
+            switch (class) {
+                  case boolean_:
+                    fprintf(file, "        %s _%s = false;", ctype, attrnm);
+                    break;
+                  case integer_:
+                    fprintf(file, "        %s _%s = 0;", ctype, attrnm);
+                    break;
+                  case real_:
+                    fprintf(file, "        %s _%s = 0.0;", ctype, attrnm);
+                    break;
+                default:
+                    fprintf(file, "        %s _%s;", ctype, attrnm);
+            }
         }
         if( VARget_optional( a ) ) {
             fprintf( file, "    //  OPTIONAL" );
