Re: [Boost-users] Starting...

Subject: Re: [Boost-users] Starting...
From: Edward Diener (eldiener_at_[hidden])
Date: 2011-08-18 19:34:26

On 8/18/2011 4:10 PM, Giordano Bruno wrote:
>   Hi people, I want to use boost_pp in my embedded systems development
>   using avr-gcc (C language). I was trying to understand how boostpp
>   works, but it looks fuzzy to me.
>
>   Can you explain me what is this "0"  in the line 40 from
>   preprocessor/comparison/less.hpp:
>
>   define BOOST_PP_LESS_D(d, x, y) BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(x, y),
>   BOOST_PP_LESS_EQUAL_D, 0 BOOST_PP_TUPLE_EAT_3)(d, x, y)

The '0" means it returns 0 if the result of the BOOST_PP_NOT_EQUAL(x, y) 
is not true.