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27 lines
692 B
27 lines
692 B
use std::mem;
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fn analyze_slice(slice: &[i32]) {
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println!("first element of the slice: {}", slice[0]);
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println!("the slice has {} elements", slice.len());
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}
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fn main() {
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let xs: [i32; 5] = [1, 2, 3, 4, 5];
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let ys: [i32; 500] = [0; 500];
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println!("first element of the array: {}", xs[0]);
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println!("second element of the array: {}", xs[1]);
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println!("number of elements in the array: {}", xs.len());
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println!("array occupies {} bytes", mem::size_of_val(&xs));
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println!("borrow the whole array as a slice");
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analyze_slice(&xs);
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println!("borrow a section of the array as a slice");
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analyze_slice(&ys[1..4]);
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// println!("{}", xs[5]);
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}
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