C++ Modules draft (Technical Specification after C++17) A draft and several updated revisions for the C/C++ module specification have been published by WG21 on open-std.org. I will link only to the latest documents here: Working Draft, Extensions to C++ for Modules N4610 (October 2016). Fourth revision published as P0142R0 (March 2016). Wording for Modules published … Read more
It’s deprecated because it was a misfeature, and didn’t actually have any useful functionality! All it did was force a bunch of extra constraints in other locations. In particular, when pattern matching on such a type, you’d be forced to add a constraint, rather than (as one might initially hope) get access to a context, … Read more
It assigns user input value to a and prints it out. it is done by using a Statement Expression. Statement Expressions are a gnu gcc compiler extension and are not supported by the C/C++ standards. Hence, any code which uses statement expression is not standard conforming and non-portable. The IBM XL C/C++ v7.0 also support … Read more