rust/src/test/run-pass/cast-to-infer-ty.rs
Niko Matsakis 89bbd2c8b7 Be a bit more constrained in our early check
Do not require the target type to be fully known,
either. This allows code like `let x: *const () = 0 as _` to work
(see regression test).
2016-04-14 10:05:51 -04:00

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Rust

// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// Check that we allow a cast to `_` so long as the target type can be
// inferred elsewhere.
pub fn main() {
let i: *const i32 = 0 as _;
assert!(i.is_null());
}