I agree that modern c++ is messy, but I like this. It helps library writers, and empowers them to write better, safer code. I don't expect I'll ever need to wri

I agree that modern c++ is messy, but I like this. It helps library writers, and empowers them to write better, safer code. I don't expect I'll ever need to write that function, but if it helps the standard library, QT, boost, gsl to write safer, more expressive code, im all for it.