mirror of https://github.com/rust-lang/rust
23 lines
439 B
Rust
23 lines
439 B
Rust
//@ run-pass
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fn pairs<F>(mut it: F) where F: FnMut((isize, isize)) {
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let mut i: isize = 0;
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let mut j: isize = 0;
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while i < 10 { it((i, j)); i += 1; j += i; }
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}
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pub fn main() {
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let mut i: isize = 10;
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let mut j: isize = 0;
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pairs(|p| {
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let (_0, _1) = p;
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println!("{}", _0);
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println!("{}", _1);
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assert_eq!(_0 + 10, i);
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i += 1;
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j = _1;
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});
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assert_eq!(j, 45);
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}
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