Support 32bit?

[samoht]

Seems that the offset/length are currently int which limit the usability on 32bit architectures to 16MiB buffers. This is annoying, but changing offsets and lenght to int64 is a large API break that I would like to avoid.

So it might make sense to work with in64 internally, but keep the same signatures for len and offset, but expose len64 and offset64 which returns something valid (and make the normal function fail in case of overflow). Not sure if the runtime coast is worth the pain though ...

[cfcs]

@samoht Hmm, why does 32-bit ints limit it to 16MiB?

[dinosaure]

optint could be a solution to have an abstraction of integer independently from architecture.

[cfcs]

I guess - I still don't understand the issue though. What is it about the 31-bit int that limits things to 16MiB? Don't you still get 1GB of positive integers with the int type on 32bit?

[samoht]

@cfcs I have no idea anymore how I computed that 16 MiB limit ...

[cfcs]

Anyway, I always bid 63-bit lengths are welcome!