Availability:C-language interface function
int PL_get_long(term_t
+t, long *i)If t is a Prolog integer that can be represented as a long,
assign its value over i. If t is an integer that
cannot be represented by a C long, this function returns FALSE.
If t is a floating point number that can be represented as a
long, this function succeeds as well. See also PL_get_int64()
and PL_get_long_ex().