On Saturday, 8 February 2014 at 00:59:35 UTC, Andrei Alexandrescu
wrote:
void fun(void* sneaky = alloca(42));
will allocate memory on fun caller's frame and make it
available to fun.
I've known this for a while and am not sure whether it's an
awesome idiom of the spawn of devil.
Quoting the GNU alloca() man page:
"On many systems alloca() cannot be used inside the list of
arguments of a function call, because the stack space reserved by
alloca() would appear on the stack in the middle of the space for
the function arguments."
So... devil spawn, then?
