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Make comment about small bias in %.

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Fixes #16354.
This commit is contained in:
Steve Klabnik 2014-08-18 15:50:42 -04:00
parent f8a9211740
commit c88feffde4
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src/doc/guide.md
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@ -1894,7 +1894,8 @@ Also, you may wonder why we are using `%` on the result of `rand::random()`.
This operator is called 'modulo', and it returns the remainder of a division.
By taking the modulo of the result of `rand::random()`, we're limiting the
values to be between 0 and 99. Then, we add one to the result, making it from 1
to 100.
to 100. Using modulo can give you a very, very small bias in the result, but
for this example, it is not important.
Let's try to compile this using `cargo build`: