15 lines
275 B
Rust
15 lines
275 B
Rust
//@ run-pass
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fn range_<F>(a: isize, b: isize, mut it: F) where F: FnMut(isize) {
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assert!((a < b));
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let mut i: isize = a;
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while i < b { it(i); i += 1; }
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}
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pub fn main() {
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let mut sum: isize = 0;
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range_(0, 100, |x| sum += x );
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println!("{}", sum);
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}
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