Improved templates for std::unordered_map and std::unordered_set so they handle all sorts of those

[frol]

std::unordered_map<std::string, int, std::hash<size_t> >

Things like above cannot be packed without this patch.

[redboltz]

Thank you for sending the PR. It looks good to me. After adding some tests, I will merge it.

[redboltz]

BTW, it seems that other C++03 containers' adapters such as std::vector should have allocator tempalte parameter, is that right?

[frol]

@redboltz Yes, it seems so. I fixed only CPP11 because we use those in our project. I've never used allocator in std::vector, so I haven't noticed lack of it in msgpack-c. Thank you for this nice msgpack-c project!

[redboltz]

Yes, it seems so. I fixed only CPP11 because we use those in our project. I've never used allocator in std::vector, so I haven't noticed lack of it in msgpack-c.

@frol, I just started adding all containers' extra template parameter support. During that process, I realized that It is better that defining each template parameter instead of using variadic template parameters.

For example,

template <typename K, typename V, typename... OtherTypes>

is changed to

template <typename K, typename V, typename Hash, typename Pred, typename Alloc>

Because it describes code intention more, also it can keep consistency with C++03 container supporting code that I am adding. e.g.) std::map.

So, I will modify your PR a little.

Thank you for this nice msgpack-c project!

I am very glad to hear that :)

[frol]

So, I will modify your PR a little.

Actually, I started with explicit template parameters, but later I found usage of variadic parameters in your code and decided to use those. I also prefer explicit over implicit, so feel free to change this.

BTW, I don't really see a point in modifying my PR as it will be completely changed, so you may close it and make those changes on master.

[redboltz]

I've just merged. It contains all existing containers extra parameters support.

[frol]

Awesome! I will test it on our project today.