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Re: Why new[] adds 4 bytes to the returned address
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From: |
Ulrich Eckhardt |
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Subject: |
Re: Why new[] adds 4 bytes to the returned address |
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Date: |
Wed, 28 Feb 2007 07:47:19 +0100 |
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User-agent: |
KNode/0.10.4 |
JeanDean wrote:
> MyClass *obj = new MyClass[3];
>
> Even though address returned by new [] is 0x00365f50,
> but obj gets automatically updated by 0x00365f54.
> Why and who adds these addtional 4 bytes to the address?
Firstly, it's not an error. Secondly, new/delete need space for their own
bookkeeping data, how else would 'delete [] obj' know how many objects to
destroy before before releasing the memory?
Uli
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