Re: Userspace compiler support of "long long"

From: H. Peter Anvin
Date: Thu Jun 28 2007 - 00:19:39 EST


Kyle Moffett wrote:

The only trick is if you care about building 32-bit compat code using 64-bit linux kernel headers. In that case we should probably just make all archs use "long long" for their 64-bit integers, unless there's some platform I'm not remembering where "long long" is 128-bits or bigger. The other benefit is that people could then just use the printf format "%llu" for 64-bit integers instead of having to conditionalize it all over the place.


No, you really don't want to do that, because then u64 != uint64_t on those platforms.

-hpa

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