Hi,

BOOST_PP_CAT( MACRO1, MACRO2 );

MACRO1 expands to double

MACRO2 expands to x

BOOST_PP_CAT( MACRO1, MACRO2 ); therefore expands to        doublex;

I am trying to get the statement

double x;

I couldn’t find any macro that expands to whitespace?

I am missing something obvious here

Regards,