Safe to throw away function arguments with cast?

[Jarrett Billingsley]

On Thu, Dec 4, 2008 at 10:37 AM, Brian <digitalmars at brianguertin.com> wrote:
> Is it safe to cast a function(or delegate) into one that takes more
> arguments, causing those arguments to be ignored?
> Example:
>
> void fn() {
> }
>
> auto fptr = cast(void function(int, int))&fn;
> fptr(1, 2);
>
> // It seems to work with a simple test case, I'm just afraid of it
> blowing up at me later on.
>

No.  According to the D ABI, the callee cleans the stack.  So if you
pass more parameters than the function expects, you'll end up trashing
the stack by leaving extra values on it.