My favorite promises of c2x: Closures: http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2737.pdf Type inference for variable definitions and function retur

My favorite promises of c2x: Closures: http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2737.pdf Type inference for variable definitions and function returns: http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2735.pdf Type generic programming: http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2734.pdf Defer mechanism: http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2589.pdf What is miss the most: the preprocessor still has no macro that modifies or creates a new macro.