libcore: fix overflow/underflow in range_step #5769
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bors
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that referenced
this pull request
Apr 9, 2013
`uint::range_step` or `int::range_step` causes overflow or underflow as following.
code:
```rust
fn main() {
for uint::range_step(3, 0, -2) |n| {
println(fmt!("%u", n));
}
}
```
output:
```
3
1
18446744073709551615
18446744073709551613
...
```
This commit fixes this behavior as follows.
```
3
1
```
flip1995
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to flip1995/rust
that referenced
this pull request
Jul 14, 2020
…=phansch new lint: match_like_matches_macro Suggests using the `matches!` macro from `std` where appropriate. `redundant_pattern_matching` has been moved into the `matches` pass to allow suppressing the suggestion where `is_some` and friends are a better replacement. changelog: new lint: `match_like_matches_macro`
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uint::range_steporint::range_stepcauses overflow or underflow as following.code:
output:
This commit fixes this behavior as follows.