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Diffstat (limited to 'src/tools/clippy/src/docs/needless_range_loop.txt')
-rw-r--r-- | src/tools/clippy/src/docs/needless_range_loop.txt | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/tools/clippy/src/docs/needless_range_loop.txt b/src/tools/clippy/src/docs/needless_range_loop.txt new file mode 100644 index 000000000..583c09b28 --- /dev/null +++ b/src/tools/clippy/src/docs/needless_range_loop.txt @@ -0,0 +1,23 @@ +### What it does +Checks for looping over the range of `0..len` of some +collection just to get the values by index. + +### Why is this bad? +Just iterating the collection itself makes the intent +more clear and is probably faster. + +### Example +``` +let vec = vec!['a', 'b', 'c']; +for i in 0..vec.len() { + println!("{}", vec[i]); +} +``` + +Use instead: +``` +let vec = vec!['a', 'b', 'c']; +for i in vec { + println!("{}", i); +} +```
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