bitfield.h

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#pragma once
#include <boost/preprocessor/seq/for_each.hpp>
#include <boost/preprocessor/seq/reverse.hpp>
 
#define BITFIELD_ORDER_IDENTITY(r, data, elem) elem
 
/* Unroll bitfield structs: PPC and x86 use different element orders (due to
 * different endianess); choose one (x86) and reverse for the other
 * architecture! */
#ifdef __ppu__
#define EXPAND_BITFIELD_ELEMENTS(x)                                                                \
    BOOST_PP_SEQ_FOR_EACH(BITFIELD_ORDER_IDENTITY, _, BOOST_PP_SEQ_REVERSE(x))
#else
#define EXPAND_BITFIELD_ELEMENTS(x) BOOST_PP_SEQ_FOR_EACH(BITFIELD_ORDER_IDENTITY, _, x)
#endif