Re: Prevent object from existing on the heap

The real problem I am trying to solve is prevent objects with
__declspec(align) not being aligned. __declspec(align) tells the
Microsoft compiler the base address of an object should be aligned,
but it works only for objects created on the stack, since when
calling standard new there is no way to specify the alignment.
I know this is a Microsoft extension, but there exist equivalent
directives with the same problem in other compilers, so I hope to
find a moderately portable way to prevent or detect the problem.

I know there are methods to prevent operator new from being called
for a class, but I have to also prevent operator new from being
called for any class that contains a member variable of my class,
since otherwise that member would not be aligned.

So, my goal is to get a compiler error for any of the lines marked
as NOT OK in the following example. I would prefer a compiler error
to a runtime exception, because I potentially create millions of
such objects per second (on the stack with empty constructors, so
it does not take any time now). Also, testing for (this % 16 == 0)
does not detect the cases where the object was correctly aligned by
coincidence.
And again, I know my real problem is compiler and platform specific,
but I want to find a standard c++ way to detect it.