Better C++ support (std::string, std::wstring, exception testing)

[imb]

I'd like all the standard string tests to support the std::string and std::wstring, I would also like to add a checker for verifying that an exception is correctly generated.

[imb]

Exception verification is now available with fct_chk_ex in the tip.

[imb]

Been thinking on this a little bit, and I think the start would include something like this:

namespace {
template<typename T>
eq(const T &, const T &) {
   throw std::exception("not implemented");
}
} /* fct */

Now that's overly simplified but the idea is that certain types would specialize that template to get "equal" support for their type. So for instance to support a Foo type you would write,

namespace fct{
// specialized for foo
template<>
eq<Foo>(Foo &f1, Foo &f2) {
   myproject::check_foo_likeness(f1,f2);
}
} // namespace foo

That's the rough sketch, but I was also thinking about adding a sort of "fct::repr" template specialization as well that lets you represent your object if there is a specialization, otherwise it falls back to a "this object at address X is not equal to that object at address Y" kind of representation. So quick example,

namespace fct {
template<>
std::string repr<Foo>(Foo const &f) {
   return f.getName();
}
} // namespace fct

as an idea of how to do it. Then the "repr" can be used to hopefully produce meaningful error messages.

[imb]

This issue should be 'open'.