[splinterofchaos]

This particular feature isn't offered by anyone else, so I would not write a program with it and force anyone else who wanted to compile the code to use an unsupported, bleeding edge version of GCC. But I /will/ create a branch of a project or two, using this auto deduction, and send bug reports back if necessary.

I, and many others, have been writing code in Clang and GCC for years that could not be compiled in MSVC. But that code was standard c++11. This is experimental and people should be aware of that while using it.