2^32, 10^10 are conveniently used and will silently overflow on 32 bit machines.

[mschauer]

C.f.
https://github.com/search?q=2%5E32+extension%3Ajl&type=Code&ref=searchresults

There are several possiblities regarding this, a runtime error in case of overflow, a E-notation for Ints for example.

Edit: The github search got worse, the link above does not find examples anymore.

[quinnj]

@mschauer, all of the current results to your link (for 2^32 and 10^10) are either in comments or unregistered packages. Given there are now over 300 packages + Base Julia, I'd say that is pretty good corpus without the use of 2^32 or 10^10. If a use does arise that causes problems, I'd say it'd be better to file an issue with the specific pacakge.

[tkelman]

Really this just calls for better testing of packages on 32 bit. We could think about ways of adapting the language: julia setup to make 32 bit installation easy, an issue or prototype implementation at https://github.com/JuliaCI/travis-build would be welcome. Travis doesn't offer 32 bit VM's, but running 32 bit Julia inside a 64 bit VM will usually work (though it can easily confuse BinDeps). #12215 makes testing Win32 Julia quite easy.