15 lines
254 B
Rust
15 lines
254 B
Rust
// run-pass
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fn each<T, F>(x: &[T], mut f: F) where F: FnMut(&T) {
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for val in x {
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f(val)
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}
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}
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fn main() {
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let mut sum = 0_usize;
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let elems = [ 1_usize, 2, 3, 4, 5 ];
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each(&elems, |val| sum += *val);
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assert_eq!(sum, 15);
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}
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