There are three areas that require special attention when using qsave_program/[1,2].
- If the program is an embedded Prolog application or uses the foreign
language interface, care has to be taken to restore the appropriate
foreign context. See section
12.2 for details.
- If the program uses directives (
:- goal.lines) that perform other actions than setting predicate attributes (dynamic, volatile, etc.) or loading files (consult, etc.), the directive may need to be prefixed with initialization/1.
- Database references as returned by clause/3, recorded/3, etc., are not preserved and may thus not be part of the database when saved.