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datetime: Improve documentation a bit to explain when NULL is returned

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/706>
This commit is contained in:
Sebastian Dröge 2020-11-25 13:35:57 +02:00
parent c35d47127b
commit 16733a82f4
1 changed files with 4 additions and 3 deletions
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7
gst/gstdatetime.c
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@ -70,14 +70,14 @@ static void gst_date_time_free (GstDateTime * datetime);
/** /**
* gst_date_time_new_from_g_date_time: * gst_date_time_new_from_g_date_time:
* @dt: (transfer full): the #GDateTime. The new #GstDateTime takes ownership. * @dt: (transfer full) (nullable): the #GDateTime. The new #GstDateTime takes ownership.
* *
* Creates a new #GstDateTime from a #GDateTime object. * Creates a new #GstDateTime from a #GDateTime object.
* *
* Free-function: gst_date_time_unref * Free-function: gst_date_time_unref
* *
* Returns: (transfer full) (nullable): a newly created #GstDateTime, * Returns: (transfer full) (nullable): a newly created #GstDateTime,
* or %NULL on error * or %NULL if @dt is %NULL.
*/ */
GstDateTime * GstDateTime *
gst_date_time_new_from_g_date_time (GDateTime * dt) gst_date_time_new_from_g_date_time (GDateTime * dt)
@ -106,7 +106,8 @@ gst_date_time_new_from_g_date_time (GDateTime * dt)
* Free-function: g_date_time_unref * Free-function: g_date_time_unref
* *
* Returns: (transfer full) (nullable): a newly created #GDateTime, or * Returns: (transfer full) (nullable): a newly created #GDateTime, or
* %NULL on error * %NULL on error or if @datetime does not have a year, month, day, hour,
* minute and second.
*/ */
GDateTime * GDateTime *
gst_date_time_to_g_date_time (GstDateTime * datetime) gst_date_time_to_g_date_time (GstDateTime * datetime)