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Re: SWAP macros
It's the 'statements expression' C extention of gcc.
> Hi,
>
> In hal/common/current/include/hal_endian.h
>
> the CYG_SWAP16 macro is defined as
>
>
> # define CYG_SWAP16(_x_) \
> ({ cyg_uint16 _x = (_x_); ((_x << 8) | (_x >> 8)); })
>
>
> I don't see how this can have any effect. Shouldn't it be
>
>
> # define CYG_SWAP16(_x_) \
> ({ cyg_uint16 _x = (_x_); _x_ = ((_x << 8) | (_x >> 8)); })
>
>
>
>
> Same thing for CYG_SWAP32
>
> Thanks
> Bob
>
> --
> ----------------------------------------------------------------------
> ir. Bob Koninckx
> Katholieke Universiteit Leuven
> Division Production Engineering, tel. +32 16 322535
> Machine Design and Automation fax. +32 16 322987
> Celestijnenlaan 300B bob.koninckx@mech.kuleuven.ac.be
> B-3001 Leuven Belgium http://www.mech.kuleuven.ac.be/pma
> ----------------------------------------------------------------------
>
>
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