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Some masks where defined as ```rust const NONASCII_MASK: usize = 0x80808080_80808080u64 as usize; ``` where it was assumed that `usize` is never wider than 64, which is currently true. To make those constants valid in a hypothetical 128-bit target, these constants have been redefined in an `usize`-width-agnostic way ```rust const NONASCII_MASK: usize = usize::from_ne_bytes([0x80; size_of::<usize>()]); ``` There are already some cases where Rust anticipates the possibility of supporting 128-bit targets, such as not implementing `From<usize>` for `u64`. |
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is_ascii.rs |