Number template

[cdunn2001]

See #423 and #424.

[BillyDonahue]

I don't get it. Why is template<Integer,Float> above a namespace?

[cdunn2001]

Oops. Updated.

[cdunn2001]

Any comments?

Basically, we would name the template something obvious, then typedef Json::Value<std::string, int, double> to it. Users would have to change a few number-conversion function calls, but that would probably improve their code.

If anyone wants their own datatypes, they must provide toJson() and fromJson() converter specializations. We would need to settle on their signatures. toJson() is the hardest because it involves memory allocation.

[okodron]

Is it still relevant?

[cdunn2001]

It's future planning. In my opinion, this is closer to how jsoncpp parsers should look. The user should choose both the internal datatypes and how they are converted to/from JSON data. (We could provide useful defaults.) Not only is that flexible, but it also would eliminate a large fraction of bug reports (here and elsewhere).