In message: <[EMAIL PROTECTED]>
Paul Brook <[EMAIL PROTECTED]> writes:
: > : I find this curious... C99 (6.7.2.1) says "the allocation order of
: > : bit-fields within a unit (high-order to low-order or low-order to
: > : high-order) is implementation defined". I can't see any requirement
: > : for this, so is it just convention that bitfields on big endian systems
: > : start from the most significant bit, and those on little endian systems
: > : start from the least significant bit? (My thinking is that endianness
: > : usually refers to byte ordering and not so much bit ordering.)
: >
: > This is a convention that goes back a very long ways. It was this way
: > in the mid 1980's, and has remained true through today. I've
: > personally observed this to be the case on many different MIPS
: > compilers, ARM compilers and SPARC compilers over the years.
:
: I'm fairly sure I've seen targets that use other bitfield orderings, though I
: can't remember offhand what they were.
None of them are supported by FreeBSD and/or NetBSD...
Warner
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