// 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. fn test(cond: bool) { let v; while cond { v = 3; break; } println!("{}", v); //~ ERROR use of possibly uninitialized variable: `v` } fn main() { test(true); }