// 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.

#![allow(dead_assignment)]
#![allow(unused_variable)]

use std::gc::{Gc, GC};

struct A { a: int, b: int }
struct Abox { a: Gc<int>, b: Gc<int> }

fn ret_int_i() -> int { return 10; }

fn ret_ext_i() -> Gc<int> { return box(GC) 10; }

fn ret_int_rec() -> A { return A {a: 10, b: 10}; }

fn ret_ext_rec() -> Gc<A> { return box(GC) A {a: 10, b: 10}; }

fn ret_ext_mem() -> Abox { return Abox {a: box(GC) 10, b: box(GC) 10}; }

fn ret_ext_ext_mem() -> Gc<Abox> { box(GC) Abox{a: box(GC) 10, b: box(GC) 10} }

pub fn main() {
    let mut int_i: int;
    let mut ext_i: Gc<int>;
    let mut int_rec: A;
    let mut ext_rec: Gc<A>;
    let mut ext_mem: Abox;
    let mut ext_ext_mem: Gc<Abox>;
    int_i = ret_int_i(); // initializing

    int_i = ret_int_i(); // non-initializing

    int_i = ret_int_i(); // non-initializing

    ext_i = ret_ext_i(); // initializing

    ext_i = ret_ext_i(); // non-initializing

    ext_i = ret_ext_i(); // non-initializing

    int_rec = ret_int_rec(); // initializing

    int_rec = ret_int_rec(); // non-initializing

    int_rec = ret_int_rec(); // non-initializing

    ext_rec = ret_ext_rec(); // initializing

    ext_rec = ret_ext_rec(); // non-initializing

    ext_rec = ret_ext_rec(); // non-initializing

    ext_mem = ret_ext_mem(); // initializing

    ext_mem = ret_ext_mem(); // non-initializing

    ext_mem = ret_ext_mem(); // non-initializing

    ext_ext_mem = ret_ext_ext_mem(); // initializing

    ext_ext_mem = ret_ext_ext_mem(); // non-initializing

    ext_ext_mem = ret_ext_ext_mem(); // non-initializing

}