On: Show HN: C/C++ Development Environment for Emacs

[stinos]

I've looked at rvalue reference, and it seems to return an assignable pointer to do other thing from a function

I'm not sure how you came to that conclusion, but it is not correct. R-values don't have much to do with pointers at all. Though they sometimes do solve problems you would be tempted to use pointers for. I admit I do find it hard to explain briefly what they are though. Maybe these are helpful, though it might be hard to grasp if you don't already properly understand C++: http://www.artima.com/cppsource/rvalue.html http://thbecker.net/articles/rvalue_references/section_01.ht.... This example basically gives an idea of why they are useful: http://thisthread.blogspot.be/2011/03/what-is-rvalue-referen...

[tuhdo → stinos]

Well currently I only work with C not C++ anymore so my knowledge might be outdated. I thought that the rvalue reference is something new in C++11, as I read it here: http://thbecker.net/articles/rvalue_references/section_01.ht.... Your article seems to mention different thing from 2008? In the article I read, a function returns a pointer that you can assign it like this: get_pointer() = 1;

[stinos → tuhdo]

The design of C++11 started way before 2011, hence articles from 2008.

  get_pointer() = 1;

assigning 1 to a pointer isn't the best idea :P so I think you mean you read

  int& get_reference();
  get_reference() = 1;

which is about lvalue references, not rvalue references, and has existed in C++ since the beginning.

[tuhdo → stinos]

Thanks for the explanation.