Can there be an object transition from SOH to LOH and vice versa? If so, what processes are taking place at this time? Simple transition or something else?

Question

C++ / C#

Can there be an object transition from SOH to LOH and vice versa? If so, what processes are taking place at this time? Simple transition or something else?

Answer 1

no, it can't
upd:
don't confuse the total memory footprint with the size of the object. Loh will contain a conditional array of 100mb/large string. But the object that refers to it is not, because it will only contain a link weighing a couple of bytes.
I suspect you were thinking something like this

public class TestClass
    {
        public byte[] Bytes;

        public TestClass(byte[] bytes)
        {
            Bytes = bytes;
        }

        public void Upd()
        {
            Bytes = new byte[101 * 1024 * 1024];
        }
    }

...

    static void Main(string[] args)
    {
        var data = new TestClass[3];

        for (int i = 0; i < 3; i++)
        {
            data[i] = new TestClass(new byte[1]);
        }

        data[1].Upd();
    }

but no, this will not force the object to be re-evaluated with soh -> loh, because only the array will get into loh, and the object will just have a reference. And if you look into the memory - you can see