An integer in the inclusive range [0,7], or
A function designator.
The arguments passed to func .
See also the keyword
to make-array, which catches the most common cases.
It is probably quite rare that it is useful to use this function, unless the function allocates a lot, and you are certain that every object that is allocated of the allocation type is long-lived, which is normally difficult to tell.
Note that allocation of interned symbols is controlled separately by *symbol-alloc-gen-num*.
Note: In 32-bit LispWorks the argument what is ignored and the effect is like that of the macro allocation-in-gen-num.