Can't we just write correct code rather than trying to trick the compiler. On Wed, Mar 9, 2016 at 8:19 AM, Olivier Matz <olivier.matz at 6wind.com> wrote:
> This macro removes the const attribute of a variable. It must be used > with care in specific situations. It's better to use this macro instead > of a manual cast, as it explicitly shows the intention of the developer. > > This macro is used in the next commit of the series. > > Signed-off-by: Olivier Matz <olivier.matz at 6wind.com> > --- > lib/librte_eal/common/include/rte_common.h | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/lib/librte_eal/common/include/rte_common.h > b/lib/librte_eal/common/include/rte_common.h > index 332f2a4..dc0fc83 100644 > --- a/lib/librte_eal/common/include/rte_common.h > +++ b/lib/librte_eal/common/include/rte_common.h > @@ -285,6 +285,15 @@ rte_align64pow2(uint64_t v) > > /*********** Other general functions / macros ********/ > > +/** > + * Remove the const attribute of a variable > + * > + * This must be used with care in specific situations. It's better to > + * use this macro instead of a manual cast, as it explicitly shows the > + * intention of the developer. > + */ > +#define RTE_DECONST(type, var) ((type)(uintptr_t)(const void *)(var)) > + > #ifdef __SSE2__ > #include <emmintrin.h> > /** > -- > 2.1.4 > >
