On Thu, 6 Jul 2000, M.-A. Lemburg wrote: > Bill Tutt wrote: > > > > On Thu, 6 Jul 2000, Guido van Rossum wrote: > > > > > > In any event, having the typedef is still useful since it clarifies the > > > > meaning behind the code. > > > > > > > How about this: > > /* > > * Use this typedef when you need to represent a UTF-16 surrogate pair > > * as single unsigned integer. > > */ > > #if SIZEOF_INT >= 4 > > typedef unsigned int Py_UCS4; > > #else > > #if SIZEOF_LONG >= 4 > > typedef unsigned long Py_UCS4; > > #else > > #error "can't find integral type that can contain 32 bits" > > #endif /* SIZEOF_LONG */ > > #endif /* SIZEOF_INT */ > > I like the name... Py_UCS4 is indeed what we're talking about > here. > > What I don't understand is why you raise a compile error; AFAIK, > unsigned long is at least 32 bits on all platforms and that's > what the Unicode implementation would need to support UCS4 -- more > bits don't do any harm since the storage type is fixed at > 16-bit UTF-16 values. > Loud and obnoxious failures are much better than silent, and hard to debug failures. :) If unsigned long is big enough on all of the platforms we care about, then they won't ever see the compile error. :) Bill
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