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Possible Duplicate:
(C#) Arrays, heap and stack and value types

I am trying to study some differences between memory allocation in c#

Let's suppose that I have this instruction:

int[] array = new int[512];

Does the "array" go to the Heap? Or does it reserve 512 integers on Stack?

trincot
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RSort
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    Also, http://blogs.msdn.com/b/ericlippert/archive/2009/05/04/the-stack-is-an-implementation-detail-part-two.aspx should be required lecture for everyone everyone thinking about heap/stack in memory-managed languages. –  Jul 22 '11 at 18:23
  • https://learn.microsoft.com/en-us/archive/blogs/ericlippert/the-stack-is-an-implementation-detail-part-one Archived copy of Eric's blog post – David Peters Jan 14 '20 at 19:04

1 Answers1

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The array itself is memory allocated on the heap. People get confused and think value types are always on the stack and this is not always correct.

For example, in this class:

public class X
{
    public int Y;
}

Even though Y is an int (value type), since it is contained in a class (reference type), the int Y will be stored with the object itself, which is most likely on the heap.

The array is similar. The ints are contained in the array as value types, but the array itself is on the heap, and thus the ints are too.

James Michael Hare
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