A comparison function for #GDateTimes that is suitable as a #GCompareFunc. Both #GDateTimes must be non-%NULL.
first #GDateTime to compare
second #GDateTime to compare
-1, 0 or 1 if @dt1 is less than, equal to or greater than @dt2.
2.26
See Implementation
A comparison function for #GDateTimes that is suitable as a #GCompareFunc. Both #GDateTimes must be non-%NULL.