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  2. C400-L
  3. December 2010

Re: posix_memalign not available

Mihael:

No "memalign" function is needed on OS/400 or i5/OS. All allocations from the are always aligned on a quadword (16 byte) boundary, unless you take actions to override this default behavior.

Consider what happens if you allocate a chunk of memory to contain a data structure that contains one or more MI pointers. If the allocated block was not aligned on a quadword, how would you ever know that the MI pointers within your data structures would be properly aligned (at runtime)?

Mark

On 12/13/2010 9:27 AM, Schmidt, Mihael wrote:
Hi,

as there is no memalign (or posix_memalign) function on the i I am trying to roll my own. Does anybody sees some obvious mistake in my posix_memalign implementation?

I used this as a base for implementation: http://linux.die.net/man/3/posix_memalign

Thanx for any advice
...(snip)...


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