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Clarify casting between the same size fixed ints #277

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Merged
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Jun 11, 2021
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Clarify casting between the same size fixed ints #277

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1 change: 1 addition & 0 deletions src/casts.md
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Expand Up @@ -46,6 +46,7 @@ expression, `e as U2` is not necessarily so.
For numeric casts, there are quite a few cases to consider:

* casting between two integers of the same size (e.g. i32 -> u32) is a no-op
(Rust uses 2's complement for negative values of fixed integers)
* casting from a larger integer to a smaller integer (e.g. u32 -> u8) will
truncate
* casting from a smaller integer to a larger integer (e.g. u8 -> u32) will
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