Re:The reference D compiler is now open source
by jordigh on Friday April 07, 2017 @01:34PM
(#14061726)
I don't know, Boost has me convinced that even things like regexes in C++ templates could be possible, if your compiler has a big enough stack to handle very deep template recursions. It's theoretically possible to build a regex parser in C++ templates, right? It would be horrible, but possible.
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Re:The reference D compiler is now open source
by qznc on Friday April 07, 2017 @01:57PM
(#14061978)
With D it is possible and not horrible and already done. ;)
Re:The reference D compiler is now open source
by humanrebar on Friday April 07, 2017 @02:39PM
(#14062377)
> It's theoretically possible to build a regex parser in C++ templates, right?
You'd probably do large portions of it in "constexpr" types and functions rather than relying on recursive metaprogramming techniques.
They are also planning on adding overloading based on whether a function is constexpr, which is important if you want the same library to support both compile-time and run-time matchers.
So it's all theoretically possible already. But D has the advantage here in that it's not just possible but usable.