mirror of https://github.com/rust-lang/rust
23 lines
313 B
Rust
23 lines
313 B
Rust
//@ check-pass
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#![allow(dead_code)]
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trait MatrixRow { fn dummy(&self) { }}
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struct Mat;
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impl<'a> MatrixRow for &'a Mat {}
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struct Rows<M: MatrixRow> {
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mat: M,
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}
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impl<'a> Iterator for Rows<&'a Mat> {
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type Item = ();
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fn next(&mut self) -> Option<()> {
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unimplemented!()
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}
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}
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fn main() {}
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