Pointers to C functions and to malloc
ed data can be
hidden in CLISP objects of type machine_type;
garbage-collect will not modify its value.
But one should not dare to assume that a C stack pointer
or the address of a C function in a shared library satisfies the
same requirements.
If another pointer is to be viewed as a CLISP object, it is best
to box it, e.g. in a SIMPLE-BIT-VECTOR
or in an
Fpointer (using allocate_fpointer()
.)
These notes document CLISP version 2.49 | Last modified: 2010-07-07 |