mirror of https://github.com/rust-lang/rust
25 lines
412 B
Rust
25 lines
412 B
Rust
//@ run-pass
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#![allow(unused_must_use)]
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use std::slice::Iter;
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use std::io::{Error, ErrorKind, Result};
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use std::vec::*;
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fn foo(it: &mut Iter<u8>) -> Result<u8> {
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Ok(*it.next().unwrap())
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}
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fn bar() -> Result<u8> {
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let data: Vec<u8> = Vec::new();
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if true {
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return Err(Error::new(ErrorKind::NotFound, "msg"));
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}
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let mut it = data.iter();
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foo(&mut it)
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}
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fn main() {
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bar();
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}
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