https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65471 --- Comment #2 from Jens Gustedt <jens.gustedt at inria dot fr> --- For referece, I have now a paper at the ISO committee: http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1930.htm we will look at it in the automn session to decide what to do with it.