Re: MPS prstack

[Helmut Eller]

On Sat, May 25 2024, Gerd Möllmann wrote:

> Moint Helmut. I've pushed another fix that prevents processing non-Lisp
> objs in sub char-tables.

Oops.  Would be nice if print-tests.el would cover some of the more
exotic cases.

Somewhat related: I wonder if this line in print_stack_push is safe:

  prstack.stack[prstack.sp++] = e;

This is not an atomic operation and prstack.sp gets updated before the
new stack slot is initialized.  In theory, there is a small time window
where scan_prstack can see the new prstack.sp but not the new value for
the slot.  Do we need to worry about such issues?