I want to write a struct that stores the filesize of a given file in bytes. Which integer type is the more appropriate one? From my basic understanding, it'll be unsigned because file sizes can never be <0 but I can't get more specific than that. Note that I'm expecting these file sizes to be small (typically 1MB)
Metadata::len returns u64.
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Thank you!
yeah, u64 is basically the universally agreed apon answer.
you may occasionally encounter a file larger than 4GB, but you're not gonna have a file that's more than 18 exabytes.
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If you're storing the total size of a storage system, you might want u128.
But for a single file, u64 is a good choice.
Linux, Windows, and macOS are not capable of managing files larger than u64 in size. That is generally the correct datatype.
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