* GST_STR_NULL:
* @str: The string to check.
*
- * Macro to use when a string must not be NULL, but may be NULL. If the string
- * is NULL, "(NULL)" is printed instead.
- * In GStreamer printf string arguments may not be NULL, because on some
+ * Macro to use when a string must not be %NULL, but may be %NULL. If the string
+ * is %NULL, "(NULL)" is printed instead.
+ * In GStreamer printf string arguments may not be %NULL, because on some
* platforms (ie Solaris) the libc crashes in that case. This includes debugging
* strings.
*/
*
* Looks up an existing #GstDebugCategory by its @name and sets @cat. If the
* category is not found, but GST_CAT_DEFAULT is defined, that is assigned to
- * @cat. Otherwise @cat will be NULL.
+ * @cat. Otherwise @cat will be %NULL.
*
* |[
* GST_DEBUG_CATEGORY_STATIC (gst_myplugin_debug);
* GST_CAT_LEVEL_LOG:
* @cat: category to use
* @level: the severity of the message
- * @object: (allow-none): the #GObject the message belongs to or NULL if none
+ * @object: (allow-none): the #GObject the message belongs to or %NULL if none
* @...: A printf-style message to output
*
* Outputs a debugging message. This is the most general macro for outputting