http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58815
--- Comment #15 from Paolo Carlini <paolo.carlini at oracle dot com> --- A maintainer is also needed in order to *categorize* those potential issues and plan the work: for example C++11 (+ C++14), which are the primary standards which we are implementing, don't know about decimal, thus isn't at all clear that we can conformingly add stuff (thus names) to <type_traits>. More generally, at this point, that TR is pretty old, isn't clear that we want to improve the TR code vs freezing it and start work toward providing under some sort of experimental mode, well separate from standard C++14, something close to the recent proposal written by Dietmar. See what I mean? If the issue is just "uncommenting" an operator which essentially was already there and now thanks to explicit operators in C++11 we know how to do right, that we can do right now.