Loops/Foreach: Difference between revisions
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=={{header|Rust}}== |
=={{header|Rust}}== |
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Rust's for-loop already is a foreach-loop. |
Rust's for-loop already is a foreach-loop. |
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<lang |
<lang rust>let collection = vec![1,2,3,4,5]; |
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for elem in collection { |
for elem in collection { |
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println!("{}", elem); |
println!("{}", elem); |
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Do note that Rust moves values by default and doesn't copy them. A vector would be unusable after looping over it like above. To preserve it, borrow it or use an Iter, to mutate values do a mutable borrow or create an IterMut. To get an immutable reference omit the mut-part. |
Do note that Rust moves values by default and doesn't copy them. A vector would be unusable after looping over it like above. To preserve it, borrow it or use an Iter, to mutate values do a mutable borrow or create an IterMut. To get an immutable reference omit the mut-part. |
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<lang |
<lang rust>let mut collection = vec![1,2,3,4,5]; |
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for mut_ref in &mut collection { |
for mut_ref in &mut collection { |
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// alternatively: |
// alternatively: |
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