Re: Zone usage: alloc: vs. allocBlock:

[Marcus G. Daniels]

>>>>> "KC" == Ken Cline <address@hidden> writes:

KC> Are there guidelines for when to use the Zone's `allocBlock:'
KC> method instead of `alloc:'?

Always; alloc: was just there for backward compatibility.

KC> The only difference that I saw mentioned in the documentation was
KC> pertaining to which deallocation method must be used to free the
KC> associated block.  Are the methods equivalent otherwise?

No, alloc: allocates enough extra memory to stash the size, so that
informational counters can be updated on free:.  Unfortunately, it doesn't
allocate enough to ensure that doubles will be aligned properly.

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