27 lines
818 B
Rust
27 lines
818 B
Rust
// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// compile-flags: --edition 2018
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#![feature(try_blocks)]
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fn use_val<T: Sized>(_x: T) {}
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pub fn main() {
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let cfg_res;
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let _: Result<(), ()> = try {
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Err(())?;
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cfg_res = 5;
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Ok::<(), ()>(())?;
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use_val(cfg_res);
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};
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assert_eq!(cfg_res, 5); //~ ERROR borrow of possibly uninitialized variable: `cfg_res`
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}
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