rust/tests/run-pass/const-vec-of-fns.rs
2017-02-07 19:20:16 +01:00

30 lines
982 B
Rust

// Copyright 2013 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.
// pretty-expanded FIXME #23616
/*!
* Try to double-check that static fns have the right size (with or
* without dummy env ptr, as appropriate) by iterating a size-2 array.
* If the static size differs from the runtime size, the second element
* should be read as a null or otherwise wrong pointer and crash.
*/
fn f() { }
static mut CLOSURES: &'static mut [fn()] = &mut [f as fn(), f as fn()];
pub fn main() {
unsafe {
for closure in &mut *CLOSURES {
(*closure)()
}
}
}