From: watanabesj@gmail.com Nathan Ridge wrote:
Here's a question for the preprocessor metaprogramming experts out there.
I have some classes that need to have write() methods that look like this:
template <typename output> bool write(output& out) const { return utils::write(out, member_1) && utils::write(out, member_2) && ... utils::write(out, member_n);
}
where member_1, member_2, ..., member_n are the member variables of the class.
#include
#define WRITE(r, data, member) && utils::write(out, member)
#define MEMBERS(members) \ template<typename output> \ bool write(output& out) const \ { \ return true \ BOOST_PP_SEQ_FOR_EACH(WRITE, ~, members); \ }
MEMBERS((a)(b)(c))
Cool! I don't suppose there's any way to have the syntax be MEMBERS(a, b, c)? Thanks, Nate. _________________________________________________________________ MSN Dating: Find someone special. Start now. http://go.microsoft.com/?linkid=9734384