A C++ interpreter

[bearophile]

This not at the top of my enhancement request list, but having 
something like this shared by all D compilers seems a step 
forward for D:

http://blog.coldflake.com/posts/2012-08-09-On-the-fly-C%2B%2B.html

I use the Python shell all the time, for things like:
- As a calculator able to do basic things;
- to import files and process them on the fly in some ways (some 
of the things that are also doable with Unix shell commands);
- importing libraries to do lot of things, like graphing with 
matPlotLib;
- To try and fix lines/snippets of code to integrate in Python 
programs;
- To try things that later I will put inside unit tests 
(especially doctests);
- To import whole modules from the shell and try them, to see if 
they work, to understand how they need to be used, to try ideas 
to debug them, and so on.

There is a shell in Scala too:
http://www.scala-lang.org/node/166

Bye,
bearophile