On Friday 10 August 2007 10:21:46 Herbert Xu wrote: > Paul E. McKenney <[EMAIL PROTECTED]> wrote: > > > > The compiler is within its rights to read a 32-bit quantity 16 bits at > > at time, even on a 32-bit machine. I would be glad to help pummel any > > compiler writer that pulls such a dirty trick, but the C standard really > > does permit this. > > Code all over the kernel assumes that 32-bit reads/writes > are atomic so while such a compiler might be legal it certainly > can't compile Linux.
Yes, the kernel requirements are much stricter than ISO-C. And besides it is a heavy user of C extensions anyways. On the other hand some of the C99 extensions are not allowed. And then there is sparse, which enforces a language which sometimes is quite far from standard C. You could say it is written in Linux-C, not ISO C. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
