Re: [boost] Macros at namespace scope: trailing semicolon?

From: Edward Diener (eddielee_at_[hidden])
Date: 2005-07-14 16:17:07

David Abrahams wrote:
> I am defining a macro, 
> 
>   BOOST_PARAMETER_KEYWORD(tag_namespace, name)
> 
> that declares a keyword for the Parameter library.  It has to be used
> at namespace scope.  I have the option to define it so that correct
> usage requires a trailing semicolon, or so that the trailing semicolon
> is forbidden.  Unfortunately I don't have the ability to make it
> optional.  Which should I choose?

The former. Require the user to put a trailing semi-colon.

Lines like:

SOME_MACRO(parameter, anotherparameter)

look ugly, and are confusing since a C++ programmer will always end a 
similar-looking function call with a semi-colon.