On 11/13/2011 3:49 PM, Peter Dimov wrote:
Edward Diener wrote:
There is a comment number 7 which is mine at the bottom of https://gustedt.wordpress.com/2010/06/08/detect-empty-macro-arguments/ .
I don't see it.
I do not know why that is the case. Is the last comment number 6 that you see ? I know I added a comment and it shows up as 7 when I bring up the page. My comment is: "#define AMACRO(x) () IS_EMPTY(AMACRO) is true, where of course it should be false. This is the flaw in your presentation and it is well-known. See Paul Mensonides post at http://boost.2283326.n4.nabble.com/problem-with-BOOST-PP-IS-EMPTY-macro-td26.... I give a better and less complicated version of IS_EMPTY in my variadic data macro library in the Boost sandbox which is almost wholly based on Paul Mensonides brilliant version ( I have to do some tweaks for VC8 )." Eddie