Brian Ward

Functors are pretty common in OCaml (e.g., they're how one would implement any of the common generic data structures like `Set`, `Map`, etc) but they can still take some time...

Scratch that, I believe I have it working with the much lighter-weight virtual library approach. This does lose the benefit that things that use the library look structurally different, but...

I'm going to close this in favor of #1184

I've re-opened this as an alternative to #1184 after today's language meeting. I want to do another pass on it of cleanup still, which I did do in #1184 after...

> The user may want to import multiple functions from the same file so I'd suggest `extern` _blocks_ rather than attaching the filename to each function. This is true, but...

This seems reasonable. Part 3 shouldn't be too bad since we already have overloading code generation working. Something like #1233 would make it even easier I think Since we have...

`bool` would essentially be syntactic sugar for `int `, so I don't think this would be a breaking change. Well, I guess reserving the keyword "bool" would be, but we...

I believe we can add these without the deprecated suffixes using #1191 and the `missing_math_functions` list, no?

It seems like the deprecated signatures actually were added, its https://github.com/stan-dev/math/issues/2490 which is still blocking

I think @betanalpha brings up an interesting question that I had asked myself while working on the composable transforms, which is "why are offset and multiplier considered transforms and not...