[Swig-devel] GSoC C backend report 12

[Leif M. <lei...@gm...>]

Hello everyone,

Find a short summary of what I did during last week below.

Tasks for the week were:
My tasks for this week are:
- Make the std::vector test work for the C backend
- Write/implement more runtime tests
[- Fix enums' (class/namespace) value context]

What I actually did:
- Fixed partialcheck for the C backend
- Removed name mangling of functions since it broke template functions
- Added test and runtime implementation for C backend for template functions
- Added/cleaned up some typemaps
- Fixed some runtime test implementations
- Added a test for templates (will be removed again, once the
available tests work)

Problems:
I've encountered major problems while trying to make std::vector work
completely for the C backend.
Actually, everything that returns const SOMETYPE** is affected. See
the attached very small example. So every instance of
std::vector<const SOMETYPE*> is broken too, because the
std::vector<T>::at returns a const reference to the members.
It turned out that the reason my test of std::vector<int> works is
that the person who worked on C before me commented out almost all
primitive declarations of std::vector except for those for int and
bool.

Even if this is repaired, somehow swig won't resolve the following
type within vector for primitive types:
        void push_back(const value_type& x);

This is bad, because it'll force C++ code (e.g. "std::vector< float
>::value_type") into the proxy.c file which could lead to ambiguities
of types (our SwigType typemap vs. the real C++ class).

Tasks for this week are:
- Clean up code
- Write docs about (non) working features
[- if feasible make std::vector work completely]

As always, if you have any questions or comments, please feel free to ask.

-- 
Leif