Improve cxx port.

Author: viferga

source/loader/source/loader_host.c

@@ -169,18 +169,15 @@ int loader_host_register(loader_impl host, context ctx, const char *name, loader
 
 	signature s = function_signature(f);
 
-	if (arg_size > 0)
-	{
-		size_t iterator;
+	size_t iterator;
 
-		for (iterator = 0; iterator < arg_size; ++iterator)
-		{
-			static const char empty_argument_name[] = "";
+	for (iterator = 0; iterator < arg_size; ++iterator)
+	{
+		static const char empty_argument_name[] = "";
 
-			type t = loader_impl_type(host, type_id_name(args_type_id[iterator]));
+		type t = loader_impl_type(host, type_id_name(args_type_id[iterator]));
 
-			signature_set(s, iterator, empty_argument_name, t);
-		}
+		signature_set(s, iterator, empty_argument_name, t);
 	}
 
 	type t = loader_impl_type(host, type_id_name(return_type));

source/metacall/source/metacall.c

@@ -2186,9 +2186,12 @@ type_id *metacall_type_ids(void *args[], size_t size)
 	{
 		ids = (type_id *)malloc(sizeof(type_id) * size);
 
-		for (size_t iterator = 0; iterator < size; ++iterator)
+		if (ids != NULL)
 		{
-			ids[iterator] = metacall_value_id(args[iterator]);
+			for (size_t iterator = 0; iterator < size; ++iterator)
+			{
+				ids[iterator] = metacall_value_id(args[iterator]);
+			}
 		}
 	}
 
@@ -2228,9 +2231,12 @@ void *metacallt_object(void *obj, const char *name, const enum metacall_value_id
 	{
 		ids = (type_id *)malloc(sizeof(type_id) * size);
 
-		for (size_t iterator = 0; iterator < size; ++iterator)
+		if (ids != NULL)
 		{
-			ids[iterator] = metacall_value_id(args[iterator]);
+			for (size_t iterator = 0; iterator < size; ++iterator)
+			{
+				ids[iterator] = metacall_value_id(args[iterator]);
+			}
 		}
 	}