Am 02.08.2013 10:30, schrieb Arun Raghavan: > On Fri, 2013-08-02 at 09:02 +0200, Thomas Martitz wrote: >> Am 31.07.2013 15:29, schrieb Peter Meerwald: >>>> It looks like some headers define both _BIG_ENDIAN and _LITTLE_ENDIAN >>>> (perhaps one is defined as "1" and the other as "0"?), so maybe a >>>> >>>> #if defined(_BIG_ENDIAN) && !defined(_LITTLE_ENDIAN) >>> boost (boost/detail/endian.hpp) does it like this >>> >>> p. >>> >> My system (debian jessy) defines both in endian.h (except it has two >> underscores), and __BYTE_ORDER is defined to the appropriate value. So >> the check on my system would be >> >> #if __BYTE_ORDER == __BIG_ENDIAN >> ... >> #endif > The bit I touched is sparc-specific. You'll notice that's exactly how > the check is done in the header when __BYTE_ORDER is defined. > Sorry for the noise then. I only saw the diff in this thread and it there appeared to be confusion about how to properly get the endianess of the target. Best regards.