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Prolog can create or destroy foreign terms using
new(+Type, -Datum),
new(+Type, +Size, -Datum) and
dispose(+Datum)
where Type is an atom specifying what type of foreign term is to be
allocated, and Datum is the foreign term.
Type should be an atomic type or a previously-defined type name.
The Datum returned by
new/[2,3]
is initialized to all zeroes. dispose/1
is a dangerous
operation, since once the memory is disposed, it may be used for
something else later. If Datum is later accessed, then the results will
be unpredictable. new/3
is only used to allocate arrays whose
size is not known beforehand, as defined by array(Type)
, rather
than array(Num,Type)
.