GCC 4.8 already adds support for return type deduction in normal functions. > G++ now supports a -std=c++1y option for experimentation with features proposed f

GCC 4.8 already adds support for return type deduction in normal functions. > G++ now supports a -std=c++1y option for experimentation with features proposed for the next revision of the standard, expected around 2017. Currently the only difference from -std=c++11 is support for return type deduction in normal functions, as proposed in N3386. http://gcc.gnu.org/gcc-4.8/changes.html http://gcc.gnu.org/gcc-4.8/changes.html