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Comment by the_duke | Hacker News Reader

LLVM supports arbitrarily sized integer types, but sadly it's not exposed in Rust.

The only language I've seen where this is possible is Julia (which uses LLVM too).

Swift uses them in the standard library to do cute things like a space efficient `Int63?`, but doesn't currently expose them as a general user facility.

Dart (the VM version, not the dart2js output) has arbitrarily sized integer types (`int`), as well as fixed-length ones if you need better maths support (SIMD with vector and matrix calculations).

However, Julia is a dynamic language and Rust is a static one.

I find your usage of the word static ambiguous. Also Julia is more static than you might expect, and besides it's still a compiled language, it just has a `dynamic` type (ala C# for example) as it's default type. It seems dynamic - like most lisps do - because it supports recompiling a function in a running session (however it doesn't change already compiled code, so not that dynamic).

Yeah, Julia and lisps demand more nuance than static or dynamic labels. This goes into the details for Julia: http://stackoverflow.com/a/28096079

Compilation strategy and code hotswapping are independent of static vs dynamic types. Java is statically typed, however its implementations support interpreted execution and code hotswapping.

As of? Would you mind elaborating?

Is there an upper maximum threshold?

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