// Copyright 2015 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // Ensure that we cannot move into an uninitialized fixed-size array. struct D { _x: u8 } fn d() -> D { D { _x: 0 } } fn main() { foo(1); foo(3); } fn foo(i: usize) { let mut a: [D; 4]; a[i] = d(); //~ ERROR use of possibly uninitialized variable: `a` }