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Diffstat (limited to 'Saturating a value when wrapping.md')
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diff --git a/Saturating a value when wrapping.md b/Saturating a value when wrapping.md new file mode 100644 index 0000000..2cc5bf9 --- /dev/null +++ b/Saturating a value when wrapping.md @@ -0,0 +1,12 @@ +[[Integers can overflow if compiled with --release]] +[[Rust]] + +This was a bit confusing to me, but [this forum post](https://users.rust-lang.org/t/saturating-what-does-it-really-do-and-when-is-it-useful/52720/2) sums it up quite well: + +Instead of wrapping around or error'ing, the maximum or minimum value of the type is chosen depending on which is closest to the result. + +Example with `u8`: +`0 - 1 = 0` +`7 - 8 = 0` +`8 + 1 = 8` +`1 + 8 = 8`
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