Alexandrescu managed to do it in 2000: http://www.drdobbs.com/article/print?articleId=184403758&siteSectionName=cpp http://www.drdobbs.com/article/print?article

Alexandrescu managed to do it in 2000: http://www.drdobbs.com/article/print?articleId=184403758&siteSectionName=cpp http://www.drdobbs.com/article/print?articleId=184403758&sit... (note that there are three pages). The version in Facebook Folly was cleaned up because of C++11, but this wasn’t a new technique five years ago.