[boost] Empty sequence elements

From: Tobias Schwinger (tschwinger_at_[hidden])
Date: 2005-03-02 12:20:35

Paul Mensonides wrote:
>>     BOOST_PP_IF(HAS_COLOR(t), and color is COLOR(t) , );
> 
>                                                        ^^^
> This is undefined behavior in C++.  Should be:

May a PP-Sequence have '()'-elements ?

The documentation says that "a sequence cannot be empty" which seems to 
be something different than containing empty elements...