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remove rendundant function #17237

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remove rendundant function #17237

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7 changes: 3 additions & 4 deletions src/doc/guide.md
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Expand Up @@ -1312,10 +1312,9 @@ valid for the loop body. Once the body is over, the next value is fetched from
the iterator, and we loop another time. When there are no more values, the
`for` loop is over.

In our example, the `range` function is a function, provided by Rust, that
takes a start and an end position, and gives an iterator over those values. The
upper bound is exclusive, though, so our loop will print `0` through `9`, not
`10`.
In our example, `range` is a function that takes a start and an end position,
and gives an iterator over those values. The upper bound is exclusive, though,
so our loop will print `0` through `9`, not `10`.

Rust does not have the "C style" `for` loop on purpose. Manually controlling
each element of the loop is complicated and error prone, even for experienced C
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