C++ vs C for PicoGUI 2

Hi Everybody,

It will still be a few months yet until we're really coding Om and
PicoGUI 2.0, but this is a decision worth a discussion:
Should the core components of Om and PicoGUI 2.0 be written in C or C++?

Here are a few arguments each way:

- In favor of C:

  - smaller binary size
  - C++'s class-based object model won't help much in implementing Om's
    python-like object model.
  - possibly more compatibility with older systems that don't support C++
  - C code is natively compatible with many other languages, while C++ must
    use 'extern "C"' functions for compatibility, not allowing the other
    language access to C++'s class-based object model.

- In favor of C++:

  - C++'s classes won't help implement Om, but they do provide a more standard
    way to organize the source code.
  - C++ code can be compiled without libstdc++ to produce binaries not much
    larger than C. (http://fresco.org/~njs/c++-without-stdc++)
  - C++ includes exceptions and constructors/destructors, two features we would
    definitely need to implement by hand if we used C.

--Micah

-- 
Only you can prevent creeping featurism!


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