Writing C++ code with other target language in mind

Hi there,

  I am looking for a documentation / handbook for programmer writing a
C++ library, which API need to be 'wrappable' into another language.
  I guess it all depend on
1. the target language, but I am thinking (I am not an expert) that a
lot of scripting language are very C-oriented (python, tcl, java...).
2. The third party tool used to wrap the interface (swig, pygccxml)
  There are some obvious one: template cannot be exposed directly. But
some are more subtle: can you define an interface which return stl
iterators, can you return shared_ptr, can you throw exception...

  Has anyone seen such document ?

Thanks!
-- 
Mathieu

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