Re: testing if data is allocated on the stack or heap

[Steven Schveighoffer via Digitalmars-d-learn]

On 10/17/17 7:32 PM, flamencofantasy wrote:
On Tuesday, 17 October 2017 at 17:27:17 UTC, Biotronic wrote:
On Tuesday, 17 October 2017 at 15:33:02 UTC, drug wrote:
[...]

I have very little knowledge about sbrk, so here's my solution.

Tested on win32 and win64.

[...]

Try this;

unittest {
     int[5*1024] n;
     int* p = new int;

     assert(n.onStack);
     assert(!p.onStack);
}

The second is wrong. You are asserting that the storage of p is not on 
the stack, but it is.

What p *points at* is not on the stack.

So the correct call should be:

assert(!(*p).onStack);

or (IMO) less ugly: assert(!onStack(*p));

-Steve