Creates a copy of
datetime and adds the specified number of months to the
copy. Add negative values to subtract months.
The day of the month of the resulting
GDateTime is clamped to the number
of days in the updated calendar month. For example, if adding 1 month to
31st January 2018, the result would be 28th February 2018. In 2020 (a leap
year), the result would be 29th February.
The newly created
|The caller of the method takes ownership of the data, and is responsible for freeing it.|
|The return value can be |