I desperately, desperately want this feature, but I am glad that the committee is determined to implement it correctly. C++ already has a convoluted, complex syntax, it doesn't need to be made any more complicated.
http://oaktrust.library.tamu.edu/bitstream/handle/1969.1/ETD-TAMU-2010-05-7823/SMITH-DISSERTATION.pdf?sequence=2&isAllowed=y
As always, if something is correct, it's probably due to the good auspices of my advisor; if something's wrong, I've lost all sense of shame, long since.