InterLocked and align

[Salvadoravi]

Hi all,

Many InteLocked...... functions like InterLockedIncremet
http://msdn.microsoft.com/en-us/libr...14(VS.85).aspx
have the following quote in MSDN:

"The variable pointed to by the Addend parameter must be aligned on a 32-bit boundary; otherwise, this function will behave unpredictably on multiprocessor x86 systems and any non-x86 systems. See _aligned_malloc."

Do I need to use _alloc_maloc for evry InterLocked...... function I use??

for example I would like to implement a spin lock using InterlockedExchange
http://msdn.microsoft.com/en-us/libr...90(VS.85).aspx
Do I need to align it ???

Can someone please explain when align is required.

Many thanks !!!