int json_list_object_member_add_null	(	list_object *	list_to_add,
		const char *	member_name
	)

Add a new Member with a null value to a JSON Object, defined by the list_object provided.

This function will add a new JSON Member to the provided list_object at the last position of that list.

This function only supports adding Members with the value type null.

If there are already elements in this list_object, then they are used to confirm that the list_object requested, is actually a JSON Object. If this is the first element to be added, then as no check can be made, it is assumed the caller is providing a Member to a valid JSON list type. If the list type is incorrect, an error will be thrown up when the second element is added.

Parameters

[in]	list_to_add	the list_object of the JSON data hierarchy to add the new Member to.
[in]	member_name	pointer to a nul terminated string to use as the JSON Object Member Name, this argument is required both by this function, and by JSON Standards RFC 8259.

Return values

LIST_OK	success, new element added to the list
LIST_ERR	on error