David Howells wrote:
H. Peter Anvin <[EMAIL PROTECTED]> wrote:
Why not just make it ((n) < 1 ? 0 : ...) and make it well-defined for
n == 0?
Because log2(0) is -INF or mathematically undefined or something isn't it?
Yes, but it's a *rounding up* function. In this case, it makes sense to
round up 0 to 1. This is, in fact, a common way to handle requests for
zero-byte allocation in order to be able to return a unique address for
each one, so it's not a spurious thing.
-hpa
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